cheching sinus based function frequency

Hi guys, My current problem is to check the frequency. I've got pretty complicated function expotentials and stuff, based on sinus. Does matlab provides some function that would check it for me? I could prepare some algorithm to do it, but it seems complicated. fft can't help here, i think.

[KSSV]

Have you checked with fft? fft should be able to solve it.

Answer 1

[Image Analyst]

I don't know why you say fft() can't do it. If you don't want that then try pwelch() in the Signal Analysis Toolbox.