chapter 2

58 Pages

## Matrices and systems of equations

In linear algebra, a rectangular array of numbers is called a matrix. For many

problems in mathematics, economics, and other fields, arranging numbers in such

blocks turns out to be very useful – for example, in solving systems of equations,

analyzing the evolution of dynamic systems and so on. Working with blocks of

numbers requires a methodology for the manipulation of such arrays, so that

addition, subtraction, multiplication and other algebraic procedures are defined.