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Page 9-1

Chapter 9

Matrices and linear algebra

This chapter shows examples of creating matrices and operations with

matrices, including linear algebra applications.

Entering matrices in the stack

In this section we present two different methods to enter matrices in the

calculator stack: (1) using the Matrix Editor, and (2) typing the matrix directly

into the stack.

Using the matrix editor

As with the case of vectors, discussed in Chapter 9, matrices can be entered

into the stack by using the matrix editor. For example, to enter the matrix:

first, start the matrix writer by using

„²

. Make sure that the option

@GO

→

is selected. Then use the following keystrokes:

2.5\` 4.2` 2`˜ššš

.3` 1.9` 2.8 `

2` .1\` .5`

At this point, the Matrix Writer screen may look like this:

[Note: not all lines will be visible when done with the exercises in the figures

in this Chapter. The display header will cover the top lines in the calculator. ]

5.01.02

8.29.13.0

0.22.45.2

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HP 48gII Bedienungsanleitung Seite 118