Подстановка условия
[src]
(z^2/(t^2) + 2*z/t + 1)/t + z/t при z = 1/2
2
z 2*z
-- + --- + 1
2 t
t z
------------ + -
t t
$$\frac{z}{t} + \frac{\frac{z^{2}}{t^{2}} + 1 + \frac{2 z}{t}}{t}$$
2 2 2
t + z + z*t + 2*t*z
----------------------
3
t
$$\frac{t^{2} z + t^{2} + 2 t z + z^{2}}{t^{3}}$$
$$z = \frac{1}{2}$$
2 2 2
t + (1/2) + (1/2)*t + 2*t*(1/2)
----------------------------------
3
t
$$\frac{(1/2) t^{2} + (1/2)^{2} + 2 (1/2) t + t^{2}}{t^{3}}$$
2
2 1 t
t + -- + -- + 2*t*1/2
2 2
2
----------------------
3
t
$$\frac{\frac{t^{2}}{2} + t^{2} + 2 t \frac{1}{2} + \left(\frac{1}{2}\right)^{2}}{t^{3}}$$
2
1 3*t
- + t + ----
4 2
------------
3
t
$$\frac{\frac{3 t^{2}}{2} + t + \frac{1}{4}}{t^{3}}$$
Рациональный знаменатель
[src]
/ 3 2 2\ 4
t*\t + t*z + 2*z*t / + z*t
-----------------------------
5
t
$$\frac{t^{4} z + t \left(t^{3} + 2 t^{2} z + t z^{2}\right)}{t^{5}}$$
2
1 z z 2*z
- + - + -- + ---
t t 3 2
t t
$$\frac{z}{t} + \frac{1}{t} + \frac{2 z}{t^{2}} + \frac{z^{2}}{t^{3}}$$
1/t + z/t + z^2/t^3 + 2*z/t^2
2
z 2*z
1 + z + -- + ---
2 t
t
----------------
t
$$\frac{z + 1 + \frac{2 z}{t} + \frac{z^{2}}{t^{2}}}{t}$$
2
z 2*z
1 + -- + ---
2 t
z t
- + ------------
t t
$$\frac{z}{t} + \frac{1 + \frac{2 z}{t} + \frac{z^{2}}{t^{2}}}{t}$$
z/t + (1 + z^2/t^2 + 2*z/t)/t
Объединение рациональных выражений
[src]
2 2 2
t + z + z*t + 2*t*z
----------------------
3
t
$$\frac{t^{2} z + t^{2} + 2 t z + z^{2}}{t^{3}}$$
(t^2 + z^2 + z*t^2 + 2*t*z)/t^3