_____ \/ |x|
d / _____\ --\\/ |x| / dx
sign(x) --------- _____ 2*\/ |x|
2 sign (x) - -------- + DiracDelta(x) 4*|x| -------------------------- _____ \/ |x|
3 3*sign (x) 3*DiracDelta(x)*sign(x) ---------- - ----------------------- + DiracDelta(x, 1) 2 2*|x| 8*x ------------------------------------------------------- _____ \/ |x|