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Chapter 8

Creating and Editing Matrices

In This Chapter Entering and editing a matrix Storing a matrix Doing matrix arithmetic Finding determinants and other matrix operations Solving systems of equations using matrices Converting a matrix to reduced row-echelon form

A matrix is a rectangular array of numbers arranged in rows and columns. The dimensions, r × c, of a matrix are defined by the number of rows and columns in the matrix. The individual elements in a matrix are called elements. Why is it that students are more familiar with the movie, The Matrix, rather than the actual mathematics? But I digress . . .

What are matrices used for? There are several scientific applications, but in the math classroom, they are mainly used to solve systems of equations. In this chapter, you learn the basics of dealing with matrices. There are many rules associated with matrix operations; if ...

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