The fast Fourier transform (FFT) has applications in almost every frequency related study, for example, image and signal processing, radio astronomy. It is also used as a Poisson operator inversion kernel partial differential equations fluid flows, density functional theory, many-body others. three-dimensional FFT large time complexity . Hence, parallelization to compute such FFTs. Popular libr...

The current study aimed to examine differential item functioning (DIF) of a numerical ability test for Gulf state school students. This examined the DIF items by gender and country using two analysis methods; Likelihood Ratio Test (LRT) Mantel-Haenszel (MH). sample size was 2689 individuals throughout grades 5 6, researchers used MH with SPSS LRT BILOG-MG. classification stability coefficient k...

Under the action of the general linear group, the ranks of matrices A and B forming a m × n pencil A+ λB can change, but in a restricted manner. Specifically, to every pencil one can associate a pair of minimal ranks, which is unique up to a permutation. This notion can be defined for matrix pencils and, more generally, also for matrix polynomials of arbitrary degree. The natural hierarchy it i...