Based off of the hit television show NUMB3RS, this lesson uses matrices (inverse and multiplication) to decode messages hidden within digital pictures -- a process known as steganography. This method of hidden communication is known to...

Mathworld provides a three step explanation of Gauss-Jordan elimination. To help you better understand the process, you can click on any of the highlighted terms for definitions.

The calculator program allows learners to pivot on any entry in a matrix and perform simplification.

The choice of graph representation is situation-specific. It totally depends on the type of operations to be performed and ease of use. This reference explains the most commonly used representations of a graph: Adjacency Matrix and...