Get coeffs of exponents

How can I get the coeffs of exponents?

for example:

A=-1*exp(t*w*-1i)/2 + exp(t*w*1i)/2 - exp(t*w*2i)/2 + exp(t*w*-2i)/2

I want to get: [-0.5, 0.5, -0.5, 0.5]

Answer 1

[Sai Veeramachaneni]

Hi,

You can use syms and coeffs.

Example:

syms t w i
A=-1*exp(t*w*-1i)/2 + exp(t*w*1i)/2 - exp(t*w*2i)/2 + exp(t*w*-2i)/2
coeffs(A)

Hope it helps.