"A matrix $A\\in\\R^{n\\times n}$ is called **oscillatory** if it is invertible and TN (I-TN) and there exists a postive integer $q$ such that $A^q$ is TP. The least ...

TP_TN_OSC_funcs.py contains several functions related to the number of sign variations in a vector, multiplicative compound matrices, SEB factorization, planar networks and other TP/TN/OSC matrices ...

When the SAS System processes a program, a component called the word scanner reads the program, character by character, and groups the characters into words. These words are referred to as tokens. The ...