13MATRICES AND VECTORS
This part of the book will deal with solving systems of equations. We can conveniently represent a set of equations using its matrix form, where we store the unknown coefficients in a matrix and the free terms in a vector.
We’ve been working with matrices and vectors with our affine transformations, but for the sake of completeness, let’s define them here. A matrix is a two-dimensional array of numbers arranged in rows and columns. Matrices are subject to some mathematical operations, including addition, subtraction, multiplication, and a few more. A vector, in this context, is a matrix with only one row or column (typically ...
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