Reply by Predrag Valozic ●March 20, 20022002-03-20
Hi!

In Symbolic Math Toolbox
Version 1.1 (Student Edition) 5-23-94,

With:
> fourier('cos(wo*t)')

the answer is:

ans =
pi*(Dirac(w-wo)+Dirac(w+wo))

But, for:
> fourier('cos(wo*(t-d))')

I get:
ans =
exp(-i*w*d)*pi*(Dirac(w-d-wo)+Dirac(w-d+wo))

Is it correct?

Problem is, I suppose, at Dirac(w-d-wo) and Dirac(w-d+wo).

Best regards,
Predrag