Hp 48g Graphing Calculator Bedienungsanleitung PDF herunterladen (Seite 165)

100

101

and Lni#ar Algeb'Tj

The HP 48 has extensive capabilities for entering and manipulating

arrays. Array objects represent both vectors and matrices. Many

of the operations described in this chapter also apply to vectors.

Wherever this is the case, the more general term array is used instead

of matrix.

Creating and Assembling Matrices

You can enter a matrix two ways:

■ MatrixWriter appKcation. A visual method of entering, viewing, and

editing array elements.

m Command line. The basic object-entry method.

To enter a new matrix using the MatrixWriter:

1. Press (f^fmatrix) to display the MatrixWriter screen and menu.

2. For each element in the first row, do one of the following:

m Type the real or complex number and press fENTER). You cannot

mix real and complex elements in the same matrix.

■ Compute the element using the command line and press fENTER).

To compute an element, type in the arguments (press fSPC) to

separate arguments) and press the desired function keys.

3. Press to mark the end of the first row (which specifies the

number of columns in the matrix).

4. For each element in the rest of the matrix, either type in a value or

compute it in the command line and then press (ENTER). Or, if you

wish, enter numbers into more than one cell at a time by typing

them all into the command line (pressing (SPC) to separate each

number), and then pressing (ENTER) once to enter them all.

Matrices and Linear Algebra 14-1

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