matlab符号函数与laplace变换

1，符号变量的创建函数sym，syms

 

2.拉普拉斯变换和逆变换laplace   transform and Inverse Laplace transform

函数：laplace 和ilaplace

syms wn s t;

fs = 1/s - 1/(s+wn)- wn/(s+wn)^2;

ft = ilaplace(fs)

结果

ft =

 

1 - (t*wn)/exp(t*wn) - 1/exp(t*wn)