Re: fourier transforms... help!!!

On 30 Nov 2003, Alejandro wrote:

> I´m really puzzled about this:
> I need to find the Fourier Transform of this
> function:

Why don't you just substitute the function to the definition of the
Fourier transform - and integrate it? Be sure that the products of
cos(linear_function(t)) and exp(i.omega.t) can always be integrated very
easily. Just write cos(s)=(exp(is)+exp(-is))/2. Note that
exp(a)exp(b)=exp(a+b), and the integral of exp(cx) over x is exp(cx)/c.

The Fourier transform, as a function of omega, will be peaked near
omega=w. If you need to know the final result, ask again.
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