# Matrices

Reference > Mathematics > AlgebraA brief explanation of matrices - what they are

Adding Matrices and Subtracting Matrices - how to perform simple matrix operations

How to multiply a matrix by a scalar (numerical) value

How to multiply one matrix by another matrix

An explanation of the multiplicative identity matrix and finding matrix inverses

# Understanding Coronavirus Spread

A Question and Answer session with Professor Puzzler about the math behind infection spread.

# Blogs on This Site

Reviews and book lists - books we love!

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