Господин Экзамен

Другие калькуляторы

sin(a+b)-sin(a)*cos(b) если a=-2

Выражение, которое надо упростить:

Решение

Вы ввели [src]
sin(a + b) - sin(a)*cos(b)
$$- \sin{\left(a \right)} \cos{\left(b \right)} + \sin{\left(a + b \right)}$$
sin(a + b) - sin(a)*cos(b)
Общее упрощение [src]
cos(a)*sin(b)
$$\sin{\left(b \right)} \cos{\left(a \right)}$$
cos(a)*sin(b)
Подстановка условия [src]
sin(a + b) - sin(a)*cos(b) при a = -2
подставляем
sin(a + b) - sin(a)*cos(b)
$$- \sin{\left(a \right)} \cos{\left(b \right)} + \sin{\left(a + b \right)}$$
cos(a)*sin(b)
$$\sin{\left(b \right)} \cos{\left(a \right)}$$
переменные
a = -2
$$a = -2$$
cos((-2))*sin(b)
$$\sin{\left(b \right)} \cos{\left((-2) \right)}$$
cos(-2)*sin(b)
$$\sin{\left(b \right)} \cos{\left(-2 \right)}$$
cos(2)*sin(b)
$$\sin{\left(b \right)} \cos{\left(2 \right)}$$
cos(2)*sin(b)
Собрать выражение [src]
sin(a + b)   sin(a - b)
---------- - ----------
    2            2     
$$- \frac{\sin{\left(a - b \right)}}{2} + \frac{\sin{\left(a + b \right)}}{2}$$
sin(a + b)/2 - sin(a - b)/2
Раскрыть выражение [src]
cos(a)*sin(b)
$$\sin{\left(b \right)} \cos{\left(a \right)}$$
cos(a)*sin(b)
Степени [src]
                                     / I*b    -I*b\                 
                                     |e      e    | /   -I*a    I*a\
    /   I*(-a - b)    I*(a + b)\   I*|---- + -----|*\- e     + e   /
  I*\- e           + e         /     \ 2       2  /                 
- ------------------------------ + ---------------------------------
                2                                  2                
$$\frac{i \left(e^{i a} - e^{- i a}\right) \left(\frac{e^{i b}}{2} + \frac{e^{- i b}}{2}\right)}{2} - \frac{i \left(- e^{i \left(- a - b\right)} + e^{i \left(a + b\right)}\right)}{2}$$
-i*(-exp(i*(-a - b)) + exp(i*(a + b)))/2 + i*(exp(i*b)/2 + exp(-i*b)/2)*(-exp(-i*a) + exp(i*a))/2
Численный ответ [src]
-cos(b)*sin(a) + sin(a + b)
-cos(b)*sin(a) + sin(a + b)
Тригонометрическая часть [src]
cos(a)*sin(b)
$$\sin{\left(b \right)} \cos{\left(a \right)}$$
          /    pi\
sin(b)*sin|a + --|
          \    2 /
$$\sin{\left(b \right)} \sin{\left(a + \frac{\pi}{2} \right)}$$
          /    pi\
cos(a)*cos|b - --|
          \    2 /
$$\cos{\left(a \right)} \cos{\left(b - \frac{\pi}{2} \right)}$$
        1         
------------------
          /    pi\
sec(a)*sec|b - --|
          \    2 /
$$\frac{1}{\sec{\left(a \right)} \sec{\left(b - \frac{\pi}{2} \right)}}$$
        1         
------------------
          /pi    \
csc(b)*csc|-- - a|
          \2     /
$$\frac{1}{\csc{\left(b \right)} \csc{\left(- a + \frac{\pi}{2} \right)}}$$
sin(a + b)   sin(a - b)
---------- - ----------
    2            2     
$$- \frac{\sin{\left(a - b \right)}}{2} + \frac{\sin{\left(a + b \right)}}{2}$$
            /    pi\             
- sin(a)*sin|b + --| + sin(a + b)
            \    2 /             
$$- \sin{\left(a \right)} \sin{\left(b + \frac{\pi}{2} \right)} + \sin{\left(a + b \right)}$$
    1              1      
---------- - -------------
csc(a + b)   csc(a)*sec(b)
$$\frac{1}{\csc{\left(a + b \right)}} - \frac{1}{\csc{\left(a \right)} \sec{\left(b \right)}}$$
            /    pi\      /        pi\
- cos(b)*cos|a - --| + cos|a + b - --|
            \    2 /      \        2 /
$$- \cos{\left(b \right)} \cos{\left(a - \frac{\pi}{2} \right)} + \cos{\left(a + b - \frac{\pi}{2} \right)}$$
    1                1         
---------- - ------------------
csc(a + b)             /pi    \
             csc(a)*csc|-- - b|
                       \2     /
$$\frac{1}{\csc{\left(a + b \right)}} - \frac{1}{\csc{\left(a \right)} \csc{\left(- b + \frac{\pi}{2} \right)}}$$
       1                  1         
--------------- - ------------------
   /        pi\             /    pi\
sec|a + b - --|   sec(b)*sec|a - --|
   \        2 /             \    2 /
$$\frac{1}{\sec{\left(a + b - \frac{\pi}{2} \right)}} - \frac{1}{\sec{\left(b \right)} \sec{\left(a - \frac{\pi}{2} \right)}}$$
       1                     1           
--------------- - -----------------------
csc(pi - a - b)                  /pi    \
                  csc(pi - a)*csc|-- - b|
                                 \2     /
$$\frac{1}{\csc{\left(- a - b + \pi \right)}} - \frac{1}{\csc{\left(- a + \pi \right)} \csc{\left(- b + \frac{\pi}{2} \right)}}$$
  /          2/a\\    /b\    /b\
2*|-1 + 2*cos |-||*cos|-|*sin|-|
  \           \2//    \2/    \2/
$$2 \cdot \left(2 \cos^{2}{\left(\frac{a}{2} \right)} - 1\right) \sin{\left(\frac{b}{2} \right)} \cos{\left(\frac{b}{2} \right)}$$
       1                  1         
--------------- - ------------------
   /pi        \             /pi    \
sec|-- - a - b|   sec(b)*sec|-- - a|
   \2         /             \2     /
$$\frac{1}{\sec{\left(- a - b + \frac{\pi}{2} \right)}} - \frac{1}{\sec{\left(b \right)} \sec{\left(- a + \frac{\pi}{2} \right)}}$$
              /a   b\                      /a   b\
cos(a + b)*tan|- + -| - cos(b)*sin(a) + tan|- + -|
              \2   2/                      \2   2/
$$- \sin{\left(a \right)} \cos{\left(b \right)} + \cos{\left(a + b \right)} \tan{\left(\frac{a}{2} + \frac{b}{2} \right)} + \tan{\left(\frac{a}{2} + \frac{b}{2} \right)}$$
                                   /a   b\ 
                              2*tan|- + -| 
  sin(a + b) + sin(a - b)          \2   2/ 
- ----------------------- + ---------------
             2                     2/a   b\
                            1 + tan |- + -|
                                    \2   2/
$$- \frac{\sin{\left(a - b \right)} + \sin{\left(a + b \right)}}{2} + \frac{2 \tan{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\tan^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)} + 1}$$
                                   /a   b\ 
                              2*tan|- + -| 
  /          2/b\\                 \2   2/ 
- |-1 + 2*cos |-||*sin(a) + ---------------
  \           \2//                 2/a   b\
                            1 + tan |- + -|
                                    \2   2/
$$- \left(2 \cos^{2}{\left(\frac{b}{2} \right)} - 1\right) \sin{\left(a \right)} + \frac{2 \tan{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\tan^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)} + 1}$$
     /       2/a\\    /b\  
   2*|1 - tan |-||*tan|-|  
     \        \2//    \2/  
---------------------------
/       2/a\\ /       2/b\\
|1 + tan |-||*|1 + tan |-||
\        \2// \        \2//
$$\frac{2 \cdot \left(- \tan^{2}{\left(\frac{a}{2} \right)} + 1\right) \tan{\left(\frac{b}{2} \right)}}{\left(\tan^{2}{\left(\frac{a}{2} \right)} + 1\right) \left(\tan^{2}{\left(\frac{b}{2} \right)} + 1\right)}$$
      /a   b\           /a   b\  
   tan|- + -|        tan|- - -|  
      \2   2/           \2   2/  
--------------- - ---------------
       2/a   b\          2/a   b\
1 + tan |- + -|   1 + tan |- - -|
        \2   2/           \2   2/
$$\frac{\tan{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\tan^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)} + 1} - \frac{\tan{\left(\frac{a}{2} - \frac{b}{2} \right)}}{\tan^{2}{\left(\frac{a}{2} - \frac{b}{2} \right)} + 1}$$
                    /a + b\                             
(1 + cos(a + b))*sin|-----|                             
                    \  2  /                          /a\
--------------------------- - (1 + cos(a))*cos(b)*tan|-|
            /a + b\                                  \2/
         cos|-----|                                     
            \  2  /                                     
$$- \left(\cos{\left(a \right)} + 1\right) \cos{\left(b \right)} \tan{\left(\frac{a}{2} \right)} + \frac{\left(\cos{\left(a + b \right)} + 1\right) \sin{\left(\frac{a + b}{2} \right)}}{\cos{\left(\frac{a + b}{2} \right)}}$$
//  0     for b mod pi = 0\ //  1     for a mod 2*pi = 0\
|<                        |*|<                          |
\\sin(b)     otherwise    / \\cos(a)      otherwise     /
$$\left(\begin{cases} 0 & \text{for}\: b \bmod \pi = 0 \\\sin{\left(b \right)} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\cos{\left(a \right)} & \text{otherwise} \end{cases}\right)$$
                                         2/a + b\         
                                    4*sin |-----|         
  sin(a + b)   sin(a - b)                 \  2  /         
- ---------- - ---------- + ------------------------------
      2            2        /         4/a + b\\           
                            |    4*sin |-----||           
                            |          \  2  /|           
                            |1 + -------------|*sin(a + b)
                            |        2        |           
                            \     sin (a + b) /           
$$- \frac{\sin{\left(a - b \right)}}{2} - \frac{\sin{\left(a + b \right)}}{2} + \frac{4 \sin^{2}{\left(\frac{a + b}{2} \right)}}{\left(\frac{4 \sin^{4}{\left(\frac{a + b}{2} \right)}}{\sin^{2}{\left(a + b \right)}} + 1\right) \sin{\left(a + b \right)}}$$
                                         2/a   b\         
                                    4*sin |- + -|         
  sin(a + b)   sin(a - b)                 \2   2/         
- ---------- - ---------- + ------------------------------
      2            2        /         4/a   b\\           
                            |    4*sin |- + -||           
                            |          \2   2/|           
                            |1 + -------------|*sin(a + b)
                            |        2        |           
                            \     sin (a + b) /           
$$- \frac{\sin{\left(a - b \right)}}{2} - \frac{\sin{\left(a + b \right)}}{2} + \frac{4 \sin^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\left(\frac{4 \sin^{4}{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\sin^{2}{\left(a + b \right)}} + 1\right) \sin{\left(a + b \right)}}$$
       /a   b\         /       2/b\\    /a\  
  2*tan|- + -|       2*|1 - tan |-||*tan|-|  
       \2   2/         \        \2//    \2/  
--------------- - ---------------------------
       2/a   b\   /       2/a\\ /       2/b\\
1 + tan |- + -|   |1 + tan |-||*|1 + tan |-||
        \2   2/   \        \2// \        \2//
$$- \frac{2 \cdot \left(- \tan^{2}{\left(\frac{b}{2} \right)} + 1\right) \tan{\left(\frac{a}{2} \right)}}{\left(\tan^{2}{\left(\frac{a}{2} \right)} + 1\right) \left(\tan^{2}{\left(\frac{b}{2} \right)} + 1\right)} + \frac{2 \tan{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\tan^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)} + 1}$$
       /a   b\               /a\    /b   pi\      
  2*tan|- + -|          4*tan|-|*tan|- + --|      
       \2   2/               \2/    \2   4 /      
--------------- - --------------------------------
       2/a   b\   /       2/a\\ /       2/b   pi\\
1 + tan |- + -|   |1 + tan |-||*|1 + tan |- + --||
        \2   2/   \        \2// \        \2   4 //
$$\frac{2 \tan{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\tan^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)} + 1} - \frac{4 \tan{\left(\frac{a}{2} \right)} \tan{\left(\frac{b}{2} + \frac{\pi}{4} \right)}}{\left(\tan^{2}{\left(\frac{a}{2} \right)} + 1\right) \left(\tan^{2}{\left(\frac{b}{2} + \frac{\pi}{4} \right)} + 1\right)}$$
       /a   b\               /a\    /b   pi\      
  2*cot|- + -|          4*cot|-|*tan|- + --|      
       \2   2/               \2/    \2   4 /      
--------------- - --------------------------------
       2/a   b\   /       2/a\\ /       2/b   pi\\
1 + cot |- + -|   |1 + cot |-||*|1 + tan |- + --||
        \2   2/   \        \2// \        \2   4 //
$$\frac{2 \cot{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)} + 1} - \frac{4 \tan{\left(\frac{b}{2} + \frac{\pi}{4} \right)} \cot{\left(\frac{a}{2} \right)}}{\left(\tan^{2}{\left(\frac{b}{2} + \frac{\pi}{4} \right)} + 1\right) \left(\cot^{2}{\left(\frac{a}{2} \right)} + 1\right)}$$
                                             /pi   a   b\        
                                        2*csc|-- - - - -|        
       1              1                      \2    2   2/        
- ------------ - ------------ + ---------------------------------
  2*csc(a + b)   2*csc(a - b)   /       2/pi   a   b\\           
                                |    csc |-- - - - -||           
                                |        \2    2   2/|    /a   b\
                                |1 + ----------------|*csc|- + -|
                                |         2/a   b\   |    \2   2/
                                |      csc |- + -|   |           
                                \          \2   2/   /           
$$- \frac{1}{2 \csc{\left(a + b \right)}} - \frac{1}{2 \csc{\left(a - b \right)}} + \frac{2 \csc{\left(- \frac{a}{2} - \frac{b}{2} + \frac{\pi}{2} \right)}}{\left(1 + \frac{\csc^{2}{\left(- \frac{a}{2} - \frac{b}{2} + \frac{\pi}{2} \right)}}{\csc^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)}}\right) \csc{\left(\frac{a}{2} + \frac{b}{2} \right)}}$$
/       2/a   b   pi\\                       2/b\ /       2/a   pi\\ /       2/b\\             
|1 - cot |- + - + --||*(1 + sin(a + b))   cos |-|*|1 - cot |- + --||*|1 - tan |-||*(1 + sin(a))
\        \2   2   4 //                        \2/ \        \2   4 // \        \2//             
--------------------------------------- - -----------------------------------------------------
                   2                                                2                          
$$- \frac{\left(- \tan^{2}{\left(\frac{b}{2} \right)} + 1\right) \left(- \cot^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1\right) \left(\sin{\left(a \right)} + 1\right) \cos^{2}{\left(\frac{b}{2} \right)}}{2} + \frac{\left(- \cot^{2}{\left(\frac{a}{2} + \frac{b}{2} + \frac{\pi}{4} \right)} + 1\right) \left(\sin{\left(a + b \right)} + 1\right)}{2}$$
//     0       for b mod pi = 0\ //     1        for a mod 2*pi = 0\
||                             | ||                                |
||       /b\                   | ||        2/a\                    |
||  2*cot|-|                   | ||-1 + cot |-|                    |
|<       \2/                   |*|<         \2/                    |
||-----------     otherwise    | ||------------      otherwise     |
||       2/b\                  | ||       2/a\                     |
||1 + cot |-|                  | ||1 + cot |-|                     |
\\        \2/                  / \\        \2/                     /
$$\left(\begin{cases} 0 & \text{for}\: b \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{b}{2} \right)}}{\cot^{2}{\left(\frac{b}{2} \right)} + 1} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: a \bmod 2 \pi = 0 \\\frac{\cot^{2}{\left(\frac{a}{2} \right)} - 1}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}\right)$$
     /        pi\      /        pi\                /a   b   pi\        
  cos|a + b - --|   cos|a - b - --|           2*cos|- + - - --|        
     \        2 /      \        2 /                \2   2   2 /        
- --------------- - --------------- + ---------------------------------
         2                 2          /       2/a   b   pi\\           
                                      |    cos |- + - - --||           
                                      |        \2   2   2 /|    /a   b\
                                      |1 + ----------------|*cos|- + -|
                                      |         2/a   b\   |    \2   2/
                                      |      cos |- + -|   |           
                                      \          \2   2/   /           
$$- \frac{\cos{\left(a - b - \frac{\pi}{2} \right)}}{2} - \frac{\cos{\left(a + b - \frac{\pi}{2} \right)}}{2} + \frac{2 \cos{\left(\frac{a}{2} + \frac{b}{2} - \frac{\pi}{2} \right)}}{\left(1 + \frac{\cos^{2}{\left(\frac{a}{2} + \frac{b}{2} - \frac{\pi}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)}}\right) \cos{\left(\frac{a}{2} + \frac{b}{2} \right)}}$$
                                          /       1   \          
                                        2*|1 - -------|          
                                          |       2/b\|          
                                          |    cot |-||          
             2                            \        \2//          
---------------------------- - ----------------------------------
/         1     \    /a   b\   /       1   \ /       1   \    /a\
|1 + -----------|*cot|- + -|   |1 + -------|*|1 + -------|*cot|-|
|       2/a   b\|    \2   2/   |       2/a\| |       2/b\|    \2/
|    cot |- + -||              |    cot |-|| |    cot |-||       
\        \2   2//              \        \2// \        \2//       
$$\frac{2}{\left(1 + \frac{1}{\cot^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)}}\right) \cot{\left(\frac{a}{2} + \frac{b}{2} \right)}} - \frac{2 \cdot \left(1 - \frac{1}{\cot^{2}{\left(\frac{b}{2} \right)}}\right)}{\left(1 + \frac{1}{\cot^{2}{\left(\frac{a}{2} \right)}}\right) \left(1 + \frac{1}{\cot^{2}{\left(\frac{b}{2} \right)}}\right) \cot{\left(\frac{a}{2} \right)}}$$
                                                            /a   b\             
                                                       2*sec|- + -|             
          1                   1                             \2   2/             
- ----------------- - ----------------- + --------------------------------------
       /        pi\        /        pi\   /         2/a   b\   \                
  2*sec|a + b - --|   2*sec|a - b - --|   |      sec |- + -|   |                
       \        2 /        \        2 /   |          \2   2/   |    /a   b   pi\
                                          |1 + ----------------|*sec|- + - - --|
                                          |       2/a   b   pi\|    \2   2   2 /
                                          |    sec |- + - - --||                
                                          \        \2   2   2 //                
$$- \frac{1}{2 \sec{\left(a + b - \frac{\pi}{2} \right)}} - \frac{1}{2 \sec{\left(a - b - \frac{\pi}{2} \right)}} + \frac{2 \sec{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\left(\frac{\sec^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} + \frac{b}{2} - \frac{\pi}{2} \right)}} + 1\right) \sec{\left(\frac{a}{2} + \frac{b}{2} - \frac{\pi}{2} \right)}}$$
  //  0     for a mod pi = 0\ //  1     for b mod 2*pi = 0\   //    0       for (a + b) mod pi = 0\
- |<                        |*|<                          | + |<                                  |
  \\sin(a)     otherwise    / \\cos(b)      otherwise     /   \\sin(a + b)        otherwise       /
$$\left(- \left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: b \bmod 2 \pi = 0 \\\cos{\left(b \right)} & \text{otherwise} \end{cases}\right)\right) + \left(\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\sin{\left(a + b \right)} & \text{otherwise} \end{cases}\right)$$
                              //     1       for b mod 2*pi = 0\                                        
  //  0     for a mod pi = 0\ ||                               |   //    0       for (a + b) mod pi = 0\
- |<                        |*|<   /    pi\                    | + |<                                  |
  \\sin(a)     otherwise    / ||sin|b + --|      otherwise     |   \\sin(a + b)        otherwise       /
                              \\   \    2 /                    /                                        
$$\left(- \left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: b \bmod 2 \pi = 0 \\\sin{\left(b + \frac{\pi}{2} \right)} & \text{otherwise} \end{cases}\right)\right) + \left(\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\sin{\left(a + b \right)} & \text{otherwise} \end{cases}\right)$$
        2/a   b   pi\   /        2/b\\ /        2/a   pi\\
-1 + tan |- + - + --|   |-1 + cot |-||*|-1 + tan |- + --||
         \2   2   4 /   \         \2// \         \2   4 //
--------------------- - ----------------------------------
        2/a   b   pi\    /       2/b\\ /       2/a   pi\\ 
 1 + tan |- + - + --|    |1 + cot |-||*|1 + tan |- + --|| 
         \2   2   4 /    \        \2// \        \2   4 // 
$$- \frac{\left(\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} - 1\right) \left(\cot^{2}{\left(\frac{b}{2} \right)} - 1\right)}{\left(\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1\right) \left(\cot^{2}{\left(\frac{b}{2} \right)} + 1\right)} + \frac{\tan^{2}{\left(\frac{a}{2} + \frac{b}{2} + \frac{\pi}{4} \right)} - 1}{\tan^{2}{\left(\frac{a}{2} + \frac{b}{2} + \frac{\pi}{4} \right)} + 1}$$
  /    0       for (a + b) mod pi = 0   /    0       for (a - b) mod pi = 0          /a   b\ 
  <                                     <                                       2*tan|- + -| 
  \sin(a + b)        otherwise          \sin(a - b)        otherwise                 \2   2/ 
- ----------------------------------- - ----------------------------------- + ---------------
                   2                                     2                           2/a   b\
                                                                              1 + tan |- + -|
                                                                                      \2   2/
$$\left(- \frac{\begin{cases} 0 & \text{for}\: \left(a - b\right) \bmod \pi = 0 \\\sin{\left(a - b \right)} & \text{otherwise} \end{cases}}{2}\right) - \left(\frac{\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\sin{\left(a + b \right)} & \text{otherwise} \end{cases}}{2}\right) + \frac{2 \tan{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\tan^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)} + 1}$$
       2/a   b   pi\   /       2/a   pi\\ /       2/b\\
1 - cot |- + - + --|   |1 - cot |- + --||*|1 - tan |-||
        \2   2   4 /   \        \2   4 // \        \2//
-------------------- - --------------------------------
       2/a   b   pi\   /       2/a   pi\\ /       2/b\\
1 + cot |- + - + --|   |1 + cot |- + --||*|1 + tan |-||
        \2   2   4 /   \        \2   4 // \        \2//
$$- \frac{\left(- \tan^{2}{\left(\frac{b}{2} \right)} + 1\right) \left(- \cot^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1\right)}{\left(\tan^{2}{\left(\frac{b}{2} \right)} + 1\right) \left(\cot^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1\right)} + \frac{- \cot^{2}{\left(\frac{a}{2} + \frac{b}{2} + \frac{\pi}{4} \right)} + 1}{\cot^{2}{\left(\frac{a}{2} + \frac{b}{2} + \frac{\pi}{4} \right)} + 1}$$
  //     0       for a mod pi = 0\                                 //       0         for (a + b) mod pi = 0\
  ||                             | //  1     for b mod 2*pi = 0\   ||                                       |
- |<   /    pi\                  |*|<                          | + |<   /        pi\                        |
  ||cos|a - --|     otherwise    | \\cos(b)      otherwise     /   ||cos|a + b - --|        otherwise       |
  \\   \    2 /                  /                                 \\   \        2 /                        /
$$\left(- \left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\cos{\left(a - \frac{\pi}{2} \right)} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: b \bmod 2 \pi = 0 \\\cos{\left(b \right)} & \text{otherwise} \end{cases}\right)\right) + \left(\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\cos{\left(a + b - \frac{\pi}{2} \right)} & \text{otherwise} \end{cases}\right)$$
                              //     1       for b mod 2*pi = 0\                                        
  //  0     for a mod pi = 0\ ||                               |   //    0       for (a + b) mod pi = 0\
  ||                        | ||     1                         |   ||                                  |
- |<  1                     |*|<-----------      otherwise     | + |<    1                             |
  ||------     otherwise    | ||   /pi    \                    |   ||----------        otherwise       |
  \\csc(a)                  / ||csc|-- - b|                    |   \\csc(a + b)                        /
                              \\   \2     /                    /                                        
$$\left(- \left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{1}{\csc{\left(a \right)}} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: b \bmod 2 \pi = 0 \\\frac{1}{\csc{\left(- b + \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}\right)\right) + \left(\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\frac{1}{\csc{\left(a + b \right)}} & \text{otherwise} \end{cases}\right)$$
                                                              //      0         for (a + b) mod pi = 0\
                                                              ||                                      |
  //  0     for a mod pi = 0\ //  1     for b mod 2*pi = 0\   ||1 - cos(a + b)                        |
- |<                        |*|<                          | + |<--------------        otherwise       |
  \\sin(a)     otherwise    / \\cos(b)      otherwise     /   ||     /a   b\                          |
                                                              ||  tan|- + -|                          |
                                                              \\     \2   2/                          /
$$\left(- \left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: b \bmod 2 \pi = 0 \\\cos{\left(b \right)} & \text{otherwise} \end{cases}\right)\right) + \left(\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\frac{- \cos{\left(a + b \right)} + 1}{\tan{\left(\frac{a}{2} + \frac{b}{2} \right)}} & \text{otherwise} \end{cases}\right)$$
  //     0       for a mod pi = 0\                                 //       0         for (a + b) mod pi = 0\
  ||                             | //  1     for b mod 2*pi = 0\   ||                                       |
  ||     1                       | ||                          |   ||       1                               |
- |<-----------     otherwise    |*|<  1                       | + |<---------------        otherwise       |
  ||   /    pi\                  | ||------      otherwise     |   ||   /        pi\                        |
  ||sec|a - --|                  | \\sec(b)                    /   ||sec|a + b - --|                        |
  \\   \    2 /                  /                                 \\   \        2 /                        /
$$\left(- \left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{1}{\sec{\left(a - \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: b \bmod 2 \pi = 0 \\\frac{1}{\sec{\left(b \right)}} & \text{otherwise} \end{cases}\right)\right) + \left(\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\frac{1}{\sec{\left(a + b - \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}\right)$$
                                                              //       0         for (a + b) mod pi = 0\
                                                              ||                                       |
                                                              ||       /a   b\                         |
  //  0     for a mod pi = 0\ //  1     for b mod 2*pi = 0\   ||  2*tan|- + -|                         |
- |<                        |*|<                          | + |<       \2   2/                         |
  \\sin(a)     otherwise    / \\cos(b)      otherwise     /   ||---------------        otherwise       |
                                                              ||       2/a   b\                        |
                                                              ||1 + tan |- + -|                        |
                                                              \\        \2   2/                        /
$$\left(- \left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: b \bmod 2 \pi = 0 \\\cos{\left(b \right)} & \text{otherwise} \end{cases}\right)\right) + \left(\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\frac{2 \tan{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\tan^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)} + 1} & \text{otherwise} \end{cases}\right)$$
                              //                              /    pi\           \                                        
                              ||           0              for |b + --| mod pi = 0|                                        
  //  0     for a mod pi = 0\ ||                              \    2 /           |   //    0       for (a + b) mod pi = 0\
- |<                        |*|<                                                 | + |<                                  |
  \\sin(a)     otherwise    / ||                /b   pi\                         |   \\sin(a + b)        otherwise       /
                              ||(1 + sin(b))*cot|- + --|         otherwise       |                                        
                              \\                \2   4 /                         /                                        
$$\left(- \left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 0 & \text{for}\: \left(b + \frac{\pi}{2}\right) \bmod \pi = 0 \\\left(\sin{\left(b \right)} + 1\right) \cot{\left(\frac{b}{2} + \frac{\pi}{4} \right)} & \text{otherwise} \end{cases}\right)\right) + \left(\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\sin{\left(a + b \right)} & \text{otherwise} \end{cases}\right)$$
  //    0       for a mod pi = 0\                                 //      0         for (a + b) mod pi = 0\
  ||                            |                                 ||                                      |
  ||1 - cos(a)                  | //  1     for b mod 2*pi = 0\   ||1 - cos(a + b)                        |
- |<----------     otherwise    |*|<                          | + |<--------------        otherwise       |
  ||     /a\                    | \\cos(b)      otherwise     /   ||     /a   b\                          |
  ||  tan|-|                    |                                 ||  tan|- + -|                          |
  \\     \2/                    /                                 \\     \2   2/                          /
$$\left(- \left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{- \cos{\left(a \right)} + 1}{\tan{\left(\frac{a}{2} \right)}} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: b \bmod 2 \pi = 0 \\\cos{\left(b \right)} & \text{otherwise} \end{cases}\right)\right) + \left(\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\frac{- \cos{\left(a + b \right)} + 1}{\tan{\left(\frac{a}{2} + \frac{b}{2} \right)}} & \text{otherwise} \end{cases}\right)$$
                                                              //             0                for (a + b) mod pi = 0\
                                                              ||                                                    |
                                                              ||             2                                      |
  //  0     for a mod pi = 0\ //  1     for b mod 2*pi = 0\   ||----------------------------        otherwise       |
- |<                        |*|<                          | + |
            
$$\left(- \left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: b \bmod 2 \pi = 0 \\\cos{\left(b \right)} & \text{otherwise} \end{cases}\right)\right) + \left(\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\frac{2}{\left(1 + \frac{1}{\tan^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)}}\right) \tan{\left(\frac{a}{2} + \frac{b}{2} \right)}} & \text{otherwise} \end{cases}\right)$$
                                                 /         4/b\\       
                                                 |    4*sin |-||       
                                            2/a\ |          \2/|       
             2/a + b\                  4*sin |-|*|1 - ---------|       
        4*sin |-----|                        \2/ |        2    |       
              \  2  /                            \     sin (b) /       
------------------------------ - --------------------------------------
/         4/a + b\\              /         4/a\\ /         4/b\\       
|    4*sin |-----||              |    4*sin |-|| |    4*sin |-||       
|          \  2  /|              |          \2/| |          \2/|       
|1 + -------------|*sin(a + b)   |1 + ---------|*|1 + ---------|*sin(a)
|        2        |              |        2    | |        2    |       
\     sin (a + b) /              \     sin (a) / \     sin (b) /       
$$\frac{4 \sin^{2}{\left(\frac{a + b}{2} \right)}}{\left(\frac{4 \sin^{4}{\left(\frac{a + b}{2} \right)}}{\sin^{2}{\left(a + b \right)}} + 1\right) \sin{\left(a + b \right)}} - \frac{4 \left(- \frac{4 \sin^{4}{\left(\frac{b}{2} \right)}}{\sin^{2}{\left(b \right)}} + 1\right) \sin^{2}{\left(\frac{a}{2} \right)}}{\left(\frac{4 \sin^{4}{\left(\frac{a}{2} \right)}}{\sin^{2}{\left(a \right)}} + 1\right) \left(\frac{4 \sin^{4}{\left(\frac{b}{2} \right)}}{\sin^{2}{\left(b \right)}} + 1\right) \sin{\left(a \right)}}$$
                                                 /         4/b\\       
                                                 |    4*sin |-||       
                                            2/a\ |          \2/|       
             2/a   b\                  4*sin |-|*|1 - ---------|       
        4*sin |- + -|                        \2/ |        2    |       
              \2   2/                            \     sin (b) /       
------------------------------ - --------------------------------------
/         4/a   b\\              /         4/a\\ /         4/b\\       
|    4*sin |- + -||              |    4*sin |-|| |    4*sin |-||       
|          \2   2/|              |          \2/| |          \2/|       
|1 + -------------|*sin(a + b)   |1 + ---------|*|1 + ---------|*sin(a)
|        2        |              |        2    | |        2    |       
\     sin (a + b) /              \     sin (a) / \     sin (b) /       
$$\frac{4 \sin^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\left(\frac{4 \sin^{4}{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\sin^{2}{\left(a + b \right)}} + 1\right) \sin{\left(a + b \right)}} - \frac{4 \left(- \frac{4 \sin^{4}{\left(\frac{b}{2} \right)}}{\sin^{2}{\left(b \right)}} + 1\right) \sin^{2}{\left(\frac{a}{2} \right)}}{\left(\frac{4 \sin^{4}{\left(\frac{a}{2} \right)}}{\sin^{2}{\left(a \right)}} + 1\right) \left(\frac{4 \sin^{4}{\left(\frac{b}{2} \right)}}{\sin^{2}{\left(b \right)}} + 1\right) \sin{\left(a \right)}}$$
                                                                         //                           /        3*pi\             \
                                                                         ||          1            for |a + b + ----| mod 2*pi = 0|
                                                                         ||                           \         2  /             |
                                //            /    3*pi\             \   ||                                                      |
  //  1     for b mod 2*pi = 0\ ||  1     for |a + ----| mod 2*pi = 0|   ||        2/a   b   pi\                                 |
- |<                          |*|<            \     2  /             | + |<-1 + tan |- + - + --|                                 |
  \\cos(b)      otherwise     / ||                                   |   ||         \2   2   4 /                                 |
                                \\sin(a)           otherwise         /   ||---------------------             otherwise           |
                                                                         ||        2/a   b   pi\                                 |
                                                                         || 1 + tan |- + - + --|                                 |
                                                                         \\         \2   2   4 /                                 /
$$\left(- \left(\begin{cases} 1 & \text{for}\: b \bmod 2 \pi = 0 \\\cos{\left(b \right)} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: \left(a + \frac{3 \pi}{2}\right) \bmod 2 \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases}\right)\right) + \left(\begin{cases} 1 & \text{for}\: \left(a + b + \frac{3 \pi}{2}\right) \bmod 2 \pi = 0 \\\frac{\tan^{2}{\left(\frac{a}{2} + \frac{b}{2} + \frac{\pi}{4} \right)} - 1}{\tan^{2}{\left(\frac{a}{2} + \frac{b}{2} + \frac{\pi}{4} \right)} + 1} & \text{otherwise} \end{cases}\right)$$
  //     0       for a mod pi = 0\ //     1        for b mod 2*pi = 0\   //       0         for (a + b) mod pi = 0\
  ||                             | ||                                |   ||                                       |
  ||       /a\                   | ||        2/b\                    |   ||       /a   b\                         |
  ||  2*cot|-|                   | ||-1 + cot |-|                    |   ||  2*cot|- + -|                         |
- |<       \2/                   |*|<         \2/                    | + |<       \2   2/                         |
  ||-----------     otherwise    | ||------------      otherwise     |   ||---------------        otherwise       |
  ||       2/a\                  | ||       2/b\                     |   ||       2/a   b\                        |
  ||1 + cot |-|                  | ||1 + cot |-|                     |   ||1 + cot |- + -|                        |
  \\        \2/                  / \\        \2/                     /   \\        \2   2/                        /
$$\left(- \left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: b \bmod 2 \pi = 0 \\\frac{\cot^{2}{\left(\frac{b}{2} \right)} - 1}{\cot^{2}{\left(\frac{b}{2} \right)} + 1} & \text{otherwise} \end{cases}\right)\right) + \left(\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)} + 1} & \text{otherwise} \end{cases}\right)$$
  //     0       for a mod pi = 0\ //     1       for b mod 2*pi = 0\   //       0         for (a + b) mod pi = 0\
  ||                             | ||                               |   ||                                       |
  ||       /a\                   | ||       2/b\                    |   ||       /a   b\                         |
  ||  2*tan|-|                   | ||1 - tan |-|                    |   ||  2*tan|- + -|                         |
- |<       \2/                   |*|<        \2/                    | + |<       \2   2/                         |
  ||-----------     otherwise    | ||-----------      otherwise     |   ||---------------        otherwise       |
  ||       2/a\                  | ||       2/b\                    |   ||       2/a   b\                        |
  ||1 + tan |-|                  | ||1 + tan |-|                    |   ||1 + tan |- + -|                        |
  \\        \2/                  / \\        \2/                    /   \\        \2   2/                        /
$$\left(- \left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \tan{\left(\frac{a}{2} \right)}}{\tan^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: b \bmod 2 \pi = 0 \\\frac{- \tan^{2}{\left(\frac{b}{2} \right)} + 1}{\tan^{2}{\left(\frac{b}{2} \right)} + 1} & \text{otherwise} \end{cases}\right)\right) + \left(\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\frac{2 \tan{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\tan^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)} + 1} & \text{otherwise} \end{cases}\right)$$
  /       0         for (a + b) mod pi = 0   /       0         for (a - b) mod pi = 0                               
  |                                          |                                                                      
  |       /a   b\                            |       /a   b\                                                        
  |  2*cot|- + -|                            |  2*cot|- - -|                                                        
  <       \2   2/                            <       \2   2/                                                        
  |---------------        otherwise          |---------------        otherwise                                      
  |       2/a   b\                           |       2/a   b\                                                       
  |1 + cot |- + -|                           |1 + cot |- - -|                                                       
  \        \2   2/                           \        \2   2/                                        2              
- ---------------------------------------- - ---------------------------------------- + ----------------------------
                     2                                          2                       /         1     \    /a   b\
                                                                                        |1 + -----------|*cot|- + -|
                                                                                        |       2/a   b\|    \2   2/
                                                                                        |    cot |- + -||           
                                                                                        \        \2   2//           
$$\left(- \frac{\begin{cases} 0 & \text{for}\: \left(a - b\right) \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} - \frac{b}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} - \frac{b}{2} \right)} + 1} & \text{otherwise} \end{cases}}{2}\right) - \left(\frac{\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)} + 1} & \text{otherwise} \end{cases}}{2}\right) + \frac{2}{\left(1 + \frac{1}{\cot^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)}}\right) \cot{\left(\frac{a}{2} + \frac{b}{2} \right)}}$$
  //            0              for a mod pi = 0\ //             1               for b mod 2*pi = 0\   //                 0                   for (a + b) mod pi = 0\
  ||                                           | ||                                               |   ||                                                           |
- |
            
$$\left(- \left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\sin{\left(a \right)} & \text{otherwise} \end{cases} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: b \bmod 2 \pi = 0 \\\begin{cases} 1 & \text{for}\: b \bmod 2 \pi = 0 \\\cos{\left(b \right)} & \text{otherwise} \end{cases} & \text{otherwise} \end{cases}\right)\right) + \left(\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\sin{\left(a + b \right)} & \text{otherwise} \end{cases} & \text{otherwise} \end{cases}\right)$$
                                   //                      /    pi\           \                                             
  //     0       for a mod pi = 0\ ||       0          for |b + --| mod pi = 0|   //       0         for (a + b) mod pi = 0\
  ||                             | ||                      \    2 /           |   ||                                       |
  ||       /a\                   | ||                                         |   ||       /a   b\                         |
  ||  2*cot|-|                   | ||      /b   pi\                           |   ||  2*cot|- + -|                         |
- |<       \2/                   |*|< 2*cot|- + --|                           | + |<       \2   2/                         |
  ||-----------     otherwise    | ||      \2   4 /                           |   ||---------------        otherwise       |
  ||       2/a\                  | ||----------------         otherwise       |   ||       2/a   b\                        |
  ||1 + cot |-|                  | ||       2/b   pi\                         |   ||1 + cot |- + -|                        |
  \\        \2/                  / ||1 + cot |- + --|                         |   \\        \2   2/                        /
                                   \\        \2   4 /                         /                                             
$$\left(- \left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 0 & \text{for}\: \left(b + \frac{\pi}{2}\right) \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{b}{2} + \frac{\pi}{4} \right)}}{\cot^{2}{\left(\frac{b}{2} + \frac{\pi}{4} \right)} + 1} & \text{otherwise} \end{cases}\right)\right) + \left(\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)} + 1} & \text{otherwise} \end{cases}\right)$$
                                            //     1        for b mod 2*pi = 0\                                                          
                                            ||                                |                                                          
  //         0            for a mod pi = 0\ ||        1                       |   //             0                for (a + b) mod pi = 0\
  ||                                      | ||-1 + -------                    |   ||                                                    |
  ||         2                            | ||        2/b\                    |   ||             2                                      |
  ||--------------------     otherwise    | ||     tan |-|                    |   ||----------------------------        otherwise       |
- |
            
$$\left(- \left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2}{\left(1 + \frac{1}{\tan^{2}{\left(\frac{a}{2} \right)}}\right) \tan{\left(\frac{a}{2} \right)}} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: b \bmod 2 \pi = 0 \\\frac{-1 + \frac{1}{\tan^{2}{\left(\frac{b}{2} \right)}}}{1 + \frac{1}{\tan^{2}{\left(\frac{b}{2} \right)}}} & \text{otherwise} \end{cases}\right)\right) + \left(\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\frac{2}{\left(1 + \frac{1}{\tan^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)}}\right) \tan{\left(\frac{a}{2} + \frac{b}{2} \right)}} & \text{otherwise} \end{cases}\right)$$
                                                      /         2/b\   \                  
                                                      |      sec |-|   |                  
                                                      |          \2/   |    /a\           
                                                    2*|1 - ------------|*sec|-|           
                  /a   b\                             |       2/b   pi\|    \2/           
             2*sec|- + -|                             |    sec |- - --||                  
                  \2   2/                             \        \2   2 //                  
-------------------------------------- - -------------------------------------------------
/         2/a   b\   \                   /         2/a\   \ /         2/b\   \            
|      sec |- + -|   |                   |      sec |-|   | |      sec |-|   |            
|          \2   2/   |    /a   b   pi\   |          \2/   | |          \2/   |    /a   pi\
|1 + ----------------|*sec|- + - - --|   |1 + ------------|*|1 + ------------|*sec|- - --|
|       2/a   b   pi\|    \2   2   2 /   |       2/a   pi\| |       2/b   pi\|    \2   2 /
|    sec |- + - - --||                   |    sec |- - --|| |    sec |- - --||            
\        \2   2   2 //                   \        \2   2 // \        \2   2 //            
$$\frac{2 \sec{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\left(\frac{\sec^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} + \frac{b}{2} - \frac{\pi}{2} \right)}} + 1\right) \sec{\left(\frac{a}{2} + \frac{b}{2} - \frac{\pi}{2} \right)}} - \frac{2 \left(- \frac{\sec^{2}{\left(\frac{b}{2} \right)}}{\sec^{2}{\left(\frac{b}{2} - \frac{\pi}{2} \right)}} + 1\right) \sec{\left(\frac{a}{2} \right)}}{\left(\frac{\sec^{2}{\left(\frac{a}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1\right) \left(\frac{\sec^{2}{\left(\frac{b}{2} \right)}}{\sec^{2}{\left(\frac{b}{2} - \frac{\pi}{2} \right)}} + 1\right) \sec{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}$$
                                            /       2/b   pi\\                  
                                            |    cos |- - --||                  
                                            |        \2   2 /|    /a   pi\      
                                          2*|1 - ------------|*cos|- - --|      
             /a   b   pi\                   |         2/b\   |    \2   2 /      
        2*cos|- + - - --|                   |      cos |-|   |                  
             \2   2   2 /                   \          \2/   /                  
--------------------------------- - --------------------------------------------
/       2/a   b   pi\\              /       2/a   pi\\ /       2/b   pi\\       
|    cos |- + - - --||              |    cos |- - --|| |    cos |- - --||       
|        \2   2   2 /|    /a   b\   |        \2   2 /| |        \2   2 /|    /a\
|1 + ----------------|*cos|- + -|   |1 + ------------|*|1 + ------------|*cos|-|
|         2/a   b\   |    \2   2/   |         2/a\   | |         2/b\   |    \2/
|      cos |- + -|   |              |      cos |-|   | |      cos |-|   |       
\          \2   2/   /              \          \2/   / \          \2/   /       
$$\frac{2 \cos{\left(\frac{a}{2} + \frac{b}{2} - \frac{\pi}{2} \right)}}{\left(1 + \frac{\cos^{2}{\left(\frac{a}{2} + \frac{b}{2} - \frac{\pi}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)}}\right) \cos{\left(\frac{a}{2} + \frac{b}{2} \right)}} - \frac{2 \cdot \left(1 - \frac{\cos^{2}{\left(\frac{b}{2} - \frac{\pi}{2} \right)}}{\cos^{2}{\left(\frac{b}{2} \right)}}\right) \cos{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\left(1 + \frac{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} \right)}}\right) \left(1 + \frac{\cos^{2}{\left(\frac{b}{2} - \frac{\pi}{2} \right)}}{\cos^{2}{\left(\frac{b}{2} \right)}}\right) \cos{\left(\frac{a}{2} \right)}}$$
                                            /       2/pi   b\\                  
                                            |    csc |-- - -||                  
                                            |        \2    2/|    /pi   a\      
                                          2*|1 - ------------|*csc|-- - -|      
             /pi   a   b\                   |         2/b\   |    \2    2/      
        2*csc|-- - - - -|                   |      csc |-|   |                  
             \2    2   2/                   \          \2/   /                  
--------------------------------- - --------------------------------------------
/       2/pi   a   b\\              /       2/pi   a\\ /       2/pi   b\\       
|    csc |-- - - - -||              |    csc |-- - -|| |    csc |-- - -||       
|        \2    2   2/|    /a   b\   |        \2    2/| |        \2    2/|    /a\
|1 + ----------------|*csc|- + -|   |1 + ------------|*|1 + ------------|*csc|-|
|         2/a   b\   |    \2   2/   |         2/a\   | |         2/b\   |    \2/
|      csc |- + -|   |              |      csc |-|   | |      csc |-|   |       
\          \2   2/   /              \          \2/   / \          \2/   /       
$$\frac{2 \csc{\left(- \frac{a}{2} - \frac{b}{2} + \frac{\pi}{2} \right)}}{\left(1 + \frac{\csc^{2}{\left(- \frac{a}{2} - \frac{b}{2} + \frac{\pi}{2} \right)}}{\csc^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)}}\right) \csc{\left(\frac{a}{2} + \frac{b}{2} \right)}} - \frac{2 \cdot \left(1 - \frac{\csc^{2}{\left(- \frac{b}{2} + \frac{\pi}{2} \right)}}{\csc^{2}{\left(\frac{b}{2} \right)}}\right) \csc{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\left(1 + \frac{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}}{\csc^{2}{\left(\frac{a}{2} \right)}}\right) \left(1 + \frac{\csc^{2}{\left(- \frac{b}{2} + \frac{\pi}{2} \right)}}{\csc^{2}{\left(\frac{b}{2} \right)}}\right) \csc{\left(\frac{a}{2} \right)}}$$
                                      //                       /    3*pi\             \   //                           /        3*pi\             \
  //     1        for b mod 2*pi = 0\ ||        1          for |a + ----| mod 2*pi = 0|   ||          1            for |a + b + ----| mod 2*pi = 0|
  ||                                | ||                       \     2  /             |   ||                           \         2  /             |
  ||        2/b\                    | ||                                              |   ||                                                      |
  ||-1 + cot |-|                    | ||        2/a   pi\                             |   ||        2/a   b   pi\                                 |
- |<         \2/                    |*|<-1 + tan |- + --|                             | + |<-1 + tan |- + - + --|                                 |
  ||------------      otherwise     | ||         \2   4 /                             |   ||         \2   2   4 /                                 |
  ||       2/b\                     | ||-----------------           otherwise         |   ||---------------------             otherwise           |
  ||1 + cot |-|                     | ||        2/a   pi\                             |   ||        2/a   b   pi\                                 |
  \\        \2/                     / || 1 + tan |- + --|                             |   || 1 + tan |- + - + --|                                 |
                                      \\         \2   4 /                             /   \\         \2   2   4 /                                 /
$$\left(- \left(\begin{cases} 1 & \text{for}\: b \bmod 2 \pi = 0 \\\frac{\cot^{2}{\left(\frac{b}{2} \right)} - 1}{\cot^{2}{\left(\frac{b}{2} \right)} + 1} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: \left(a + \frac{3 \pi}{2}\right) \bmod 2 \pi = 0 \\\frac{\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} - 1}{\tan^{2}{\left(\frac{a}{2} + \frac{\pi}{4} \right)} + 1} & \text{otherwise} \end{cases}\right)\right) + \left(\begin{cases} 1 & \text{for}\: \left(a + b + \frac{3 \pi}{2}\right) \bmod 2 \pi = 0 \\\frac{\tan^{2}{\left(\frac{a}{2} + \frac{b}{2} + \frac{\pi}{4} \right)} - 1}{\tan^{2}{\left(\frac{a}{2} + \frac{b}{2} + \frac{\pi}{4} \right)} + 1} & \text{otherwise} \end{cases}\right)$$
  //             0                for a mod pi = 0\                                                      //                 0                    for (a + b) mod pi = 0\
  ||                                              |                                                      ||                                                            |
  ||          2*sin(a)                            | //             1               for b mod 2*pi = 0\   ||            2*sin(a + b)                                    |
  ||----------------------------     otherwise    | ||                                               |   ||------------------------------------        otherwise       |
  ||             /        2    \                  | ||           2                                   |   ||                 /        2        \                        |
- |<             |     sin (a) |                  |*|< -4 + 4*sin (b) + 4*cos(b)                     | + |<                 |     sin (a + b) |                        |
  ||(1 - cos(a))*|1 + ---------|                  | ||---------------------------      otherwise     |   ||(1 - cos(a + b))*|1 + -------------|                        |
  ||             |         4/a\|                  | ||              2        2                       |   ||                 |         4/a + b\|                        |
  ||             |    4*sin |-||                  | \\2*(1 - cos(b))  + 2*sin (b)                    /   ||                 |    4*sin |-----||                        |
  ||             \          \2//                  |                                                      ||                 \          \  2  //                        |
  \\                                              /                                                      \\                                                            /
$$\left(- \left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \sin{\left(a \right)}}{\left(1 + \frac{\sin^{2}{\left(a \right)}}{4 \sin^{4}{\left(\frac{a}{2} \right)}}\right) \left(- \cos{\left(a \right)} + 1\right)} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: b \bmod 2 \pi = 0 \\\frac{4 \sin^{2}{\left(b \right)} + 4 \cos{\left(b \right)} - 4}{2 \left(- \cos{\left(b \right)} + 1\right)^{2} + 2 \sin^{2}{\left(b \right)}} & \text{otherwise} \end{cases}\right)\right) + \left(\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\frac{2 \sin{\left(a + b \right)}}{\left(1 + \frac{\sin^{2}{\left(a + b \right)}}{4 \sin^{4}{\left(\frac{a + b}{2} \right)}}\right) \left(- \cos{\left(a + b \right)} + 1\right)} & \text{otherwise} \end{cases}\right)$$
                                               //      1         for b mod 2*pi = 0\                                                             
                                               ||                                  |                                                             
  //           0             for a mod pi = 0\ ||         2                        |   //               0                 for (a + b) mod pi = 0\
  ||                                         | ||      sin (b)                     |   ||                                                       |
  ||         sin(a)                          | ||-1 + ---------                    |   ||           sin(a + b)                                  |
  ||-----------------------     otherwise    | ||          4/b\                    |   ||-------------------------------        otherwise       |
  ||/        2    \                          | ||     4*sin |-|                    |   ||/        2        \                                    |
- |<|     sin (a) |    2/a\                  |*|<           \2/                    | + |<|     sin (a + b) |    2/a   b\                        |
  |||1 + ---------|*sin |-|                  | ||--------------      otherwise     |   |||1 + -------------|*sin |- + -|                        |
  |||         4/a\|     \2/                  | ||        2                         |   |||         4/a   b\|     \2   2/                        |
  |||    4*sin |-||                          | ||     sin (b)                      |   |||    4*sin |- + -||                                    |
  ||\          \2//                          | ||1 + ---------                     |   ||\          \2   2//                                    |
  \\                                         / ||         4/b\                     |   \\                                                       /
                                               ||    4*sin |-|                     |                                                             
                                               \\          \2/                     /                                                             
$$\left(- \left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{\sin{\left(a \right)}}{\left(1 + \frac{\sin^{2}{\left(a \right)}}{4 \sin^{4}{\left(\frac{a}{2} \right)}}\right) \sin^{2}{\left(\frac{a}{2} \right)}} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: b \bmod 2 \pi = 0 \\\frac{-1 + \frac{\sin^{2}{\left(b \right)}}{4 \sin^{4}{\left(\frac{b}{2} \right)}}}{1 + \frac{\sin^{2}{\left(b \right)}}{4 \sin^{4}{\left(\frac{b}{2} \right)}}} & \text{otherwise} \end{cases}\right)\right) + \left(\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\frac{\sin{\left(a + b \right)}}{\left(1 + \frac{\sin^{2}{\left(a + b \right)}}{4 \sin^{4}{\left(\frac{a}{2} + \frac{b}{2} \right)}}\right) \sin^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)}} & \text{otherwise} \end{cases}\right)$$
  //              0                 for a mod pi = 0\ //                1                  for b mod 2*pi = 0\   //                   0                      for (a + b) mod pi = 0\
  ||                                                | ||                                                     |   ||                                                                |
  ||/     0       for a mod pi = 0                  | ||/     1        for b mod 2*pi = 0                    |   ||/       0         for (a + b) mod pi = 0                        |
  |||                                               | |||                                                    |   |||                                                               |
  |||       /a\                                     | |||        2/b\                                        |   |||       /a   b\                                                 |
- |<|  2*cot|-|                                     |*|<|-1 + cot |-|                                        | + |<|  2*cot|- + -|                                                 |
  ||<       \2/                        otherwise    | ||<         \2/                          otherwise     |   ||<       \2   2/                                 otherwise       |
  |||-----------     otherwise                      | |||------------      otherwise                         |   |||---------------        otherwise                               |
  |||       2/a\                                    | |||       2/b\                                         |   |||       2/a   b\                                                |
  |||1 + cot |-|                                    | |||1 + cot |-|                                         |   |||1 + cot |- + -|                                                |
  \\\        \2/                                    / \\\        \2/                                         /   \\\        \2   2/                                                /
$$\left(- \left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} \right)} + 1} & \text{otherwise} \end{cases} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: b \bmod 2 \pi = 0 \\\begin{cases} 1 & \text{for}\: b \bmod 2 \pi = 0 \\\frac{\cot^{2}{\left(\frac{b}{2} \right)} - 1}{\cot^{2}{\left(\frac{b}{2} \right)} + 1} & \text{otherwise} \end{cases} & \text{otherwise} \end{cases}\right)\right) + \left(\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\frac{2 \cot{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\cot^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)} + 1} & \text{otherwise} \end{cases} & \text{otherwise} \end{cases}\right)$$
                                                      //        1          for b mod 2*pi = 0\                                                                    
                                                      ||                                     |                                                                    
  //              0                 for a mod pi = 0\ ||          2/b\                       |   //                  0                     for (a + b) mod pi = 0\
  ||                                                | ||       cos |-|                       |   ||                                                              |
  ||                /a\                             | ||           \2/                       |   ||                  /a   b\                                     |
  ||           2*cos|-|                             | ||-1 + ------------                    |   ||             2*cos|- + -|                                     |
  ||                \2/                             | ||        2/b   pi\                    |   ||                  \2   2/                                     |
  ||------------------------------     otherwise    | ||     cos |- - --|                    |   ||--------------------------------------        otherwise       |
- |
            
$$\left(- \left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \cos{\left(\frac{a}{2} \right)}}{\left(\frac{\cos^{2}{\left(\frac{a}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} + 1\right) \cos{\left(\frac{a}{2} - \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: b \bmod 2 \pi = 0 \\\frac{\frac{\cos^{2}{\left(\frac{b}{2} \right)}}{\cos^{2}{\left(\frac{b}{2} - \frac{\pi}{2} \right)}} - 1}{\frac{\cos^{2}{\left(\frac{b}{2} \right)}}{\cos^{2}{\left(\frac{b}{2} - \frac{\pi}{2} \right)}} + 1} & \text{otherwise} \end{cases}\right)\right) + \left(\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\frac{2 \cos{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\left(\frac{\cos^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\cos^{2}{\left(\frac{a}{2} + \frac{b}{2} - \frac{\pi}{2} \right)}} + 1\right) \cos{\left(\frac{a}{2} + \frac{b}{2} - \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}\right)$$
                                                 //        1          for b mod 2*pi = 0\                                                               
                                                 ||                                     |                                                               
  //            0              for a mod pi = 0\ ||        2/b   pi\                    |   //                0                  for (a + b) mod pi = 0\
  ||                                           | ||     sec |- - --|                    |   ||                                                         |
  ||           /a   pi\                        | ||         \2   2 /                    |   ||             /a   b   pi\                                |
  ||      2*sec|- - --|                        | ||-1 + ------------                    |   ||        2*sec|- + - - --|                                |
  ||           \2   2 /                        | ||          2/b\                       |   ||             \2   2   2 /                                |
  ||-------------------------     otherwise    | ||       sec |-|                       |   ||---------------------------------        otherwise       |
- |
            
$$\left(- \left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \sec{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\left(1 + \frac{\sec^{2}{\left(\frac{a}{2} - \frac{\pi}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} \right)}}\right) \sec{\left(\frac{a}{2} \right)}} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: b \bmod 2 \pi = 0 \\\frac{-1 + \frac{\sec^{2}{\left(\frac{b}{2} - \frac{\pi}{2} \right)}}{\sec^{2}{\left(\frac{b}{2} \right)}}}{1 + \frac{\sec^{2}{\left(\frac{b}{2} - \frac{\pi}{2} \right)}}{\sec^{2}{\left(\frac{b}{2} \right)}}} & \text{otherwise} \end{cases}\right)\right) + \left(\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\frac{2 \sec{\left(\frac{a}{2} + \frac{b}{2} - \frac{\pi}{2} \right)}}{\left(1 + \frac{\sec^{2}{\left(\frac{a}{2} + \frac{b}{2} - \frac{\pi}{2} \right)}}{\sec^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)}}\right) \sec{\left(\frac{a}{2} + \frac{b}{2} \right)}} & \text{otherwise} \end{cases}\right)$$
                                                      //        1          for b mod 2*pi = 0\                                                                    
                                                      ||                                     |                                                                    
  //              0                 for a mod pi = 0\ ||          2/b\                       |   //                  0                     for (a + b) mod pi = 0\
  ||                                                | ||       csc |-|                       |   ||                                                              |
  ||                /a\                             | ||           \2/                       |   ||                  /a   b\                                     |
  ||           2*csc|-|                             | ||-1 + ------------                    |   ||             2*csc|- + -|                                     |
  ||                \2/                             | ||        2/pi   b\                    |   ||                  \2   2/                                     |
  ||------------------------------     otherwise    | ||     csc |-- - -|                    |   ||--------------------------------------        otherwise       |
- |
            
$$\left(- \left(\begin{cases} 0 & \text{for}\: a \bmod \pi = 0 \\\frac{2 \csc{\left(\frac{a}{2} \right)}}{\left(\frac{\csc^{2}{\left(\frac{a}{2} \right)}}{\csc^{2}{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}} + 1\right) \csc{\left(- \frac{a}{2} + \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}\right) \left(\begin{cases} 1 & \text{for}\: b \bmod 2 \pi = 0 \\\frac{\frac{\csc^{2}{\left(\frac{b}{2} \right)}}{\csc^{2}{\left(- \frac{b}{2} + \frac{\pi}{2} \right)}} - 1}{\frac{\csc^{2}{\left(\frac{b}{2} \right)}}{\csc^{2}{\left(- \frac{b}{2} + \frac{\pi}{2} \right)}} + 1} & \text{otherwise} \end{cases}\right)\right) + \left(\begin{cases} 0 & \text{for}\: \left(a + b\right) \bmod \pi = 0 \\\frac{2 \csc{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\left(\frac{\csc^{2}{\left(\frac{a}{2} + \frac{b}{2} \right)}}{\csc^{2}{\left(- \frac{a}{2} - \frac{b}{2} + \frac{\pi}{2} \right)}} + 1\right) \csc{\left(- \frac{a}{2} - \frac{b}{2} + \frac{\pi}{2} \right)}} & \text{otherwise} \end{cases}\right)$$
-Piecewise((0, Mod(a = pi, 0)), (2*csc(a/2)/((1 + csc(a/2)^2/csc(pi/2 - a/2)^2)*csc(pi/2 - a/2)), True))*Piecewise((1, Mod(b = 2*pi, 0)), ((-1 + csc(b/2)^2/csc(pi/2 - b/2)^2)/(1 + csc(b/2)^2/csc(pi/2 - b/2)^2), True)) + Piecewise((0, Mod(a + b = pi, 0)), (2*csc(a/2 + b/2)/((1 + csc(a/2 + b/2)^2/csc(pi/2 - a/2 - b/2)^2)*csc(pi/2 - a/2 - b/2)), True))