Matrix Algebra

James Joseph Sylvester developed the modern concept of matrices in the 19th century. For him, a matrix was simply an array of numbers. He worked with systems of linear equations and so matrices provided a convenient way of working with the coefficients of these linear equations. In the process, matrix algebra was created to generalize number operations to a set of numbers called matrices. Nowadays, matrix algebra is used in all branches of mathematics and the sciences and constitutes the basis of most statistical procedures.

Matrices: Definition

A matrix is a set of numbers arranged in a table. For example, Toto, Marius, and Olivette are looking at their possessions, and they are counting how many balls, cars, coins, and novels they each possess. Toto has 2 balls, ...

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