This paper describes a new method of QR-decomposition of square nonsingular matrices (real or complex) by the Givens rotations through the unitary discrete heap transforms. This transforms can be ...

Abstract: Discrete orthogonal matrices have applications in information coding and cryptography. It is often challenging to generate discrete orthogonal matrices. A common approach widely in use is to ...

Department of Electronics and Computer Science, Technical University of Koszalin, Koszalin, Poland. 2. at least three nodes, for example equidistant between first and last node, have to be calculated ...

Abstract: Discrete orthogonal matrices have applications in information coding and cryptography. It is often challenging to generate discrete orthogonal matrices. A common approach widely in use is to ...

The QR method is a numerical method that is used to calculate all eigenvalues of a matrix, without necessarily obtaining the eigenvectors at the same time. The QR method involves an iterative process ...

QuEChERS (quick, easy, cheap, effective, rugged, and safe) sample processing methods have previously been applied to a range of compounds and matrices. This study presents a modified QuEChERS sample ...

An LC-MS/MS "dilute and shoot" method for the determination of 295 fungal and bacterial metabolites was optimized and validated according to the guidelines established in the Directorate General for ...