HP 48gII Graphing Calculator Manual do Utilizador descarregar pdf (Página 302)

Entering matrices in the stack

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

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

into the stack.

Using the Matrix Writer

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

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

first, start the matrix writer by using „². Make sure that the option

→ is selected. Then use the following keystrokes:

2.5\` 4.2` 2`˜ššš

.3` 1.9` 2.8 `

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

Press ` once more to place the matrix on the stack. The ALG mode stack is

shown next, before and after pressing , once more:

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HP 48gII Graphing Calculator Manual do Utilizador Página 302