It is now possible to calculate the Fourier transform of an image on your smartphone, thanks to a new app developed by two nanophotonics researchers in The Netherlands. “2D-Fourier” is available for ...

The inverse discrete Fourier transform is calculated from the data of the discrete Fourier transform. Signal data is the value of the signal in time. The "mirror" function adds a mirror image of a ...

We model the image drawn by the user using a series of samples of mouse positions, which can be thought of as a complex function f as follows. Similarly, each rotating component of the "arm" can be ...

Every non-zero complex homomorphism of the almost periodic functions on an abelian group is induced by the Fourier transform. A Plancherel formula for almost periodic functions and a necessary ...

Abstract: The following is a summary description of some research results that were taught to students over many years and communicated by the author in IEEE Proceedings submission, in the book ...

Abstract: The level-k $\ell_{1}$-Fourier weight of a Boolean function refers to the sum of absolute values of its level-k Fourier coefficients. Fourier growth refers to the growth of these weights as ...