Dec 29, 2019 · What is the Fourier transform? What does it do? Why is it useful (in math, in engineering, physics, etc)? This question is based on the question of Kevin Lin, which didn't …

May 9, 2017 · That's a case when the "sufficient" and "necessary" properties of statements come into play. Although the square wave function really doesn't satisfies the Dirichlet conditions …

Oct 26, 2012 · The Fourier series is used to represent a periodic function by a discrete sum of complex exponentials, while the Fourier transform is then used to represent a general, …

The theory of Fourier transforms has gotten around this in some way that means that integral using normal definitions of integrals must not be the true definition of a Fourier transform.

In the QM context, momentum and position are each other's Fourier duals, and as you just discovered, a Gaussian function that's well-localized in one space cannot be well-localized in …

0 One could derive the formula via dual numbers and using the time shift and linearity property of the Fourier transform.

I'm studying about Fourier series and transform and I get confused with the following Matlab example of Fourier transformation: Fs = 1000; % Sampling frequency T = 1/Fs; ...

In our mathematics classes ,while teaching the Fourier series and transform topic,the professor says that when the signal is periodic ,we should use Fourier series and Fourier transform for …

Jun 15, 2012 · I'm preparing for an exam in the signals and systems class I'm taking. One of the practice exams has a problem that requires you to take the Fourier transform of $\text {sinc} …

Jan 20, 2015 · Fourier transform of sinc function. Ask Question Asked 10 years, 10 months ago Modified 1 year, 5 months ago