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Copying a matrix, One-matrix operations – HP 15c User Manual

Page 149

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Section 12: Calculating with Matrices 149

While the key used for any matrix operation that stores a result in the result
matrix is held down, the descriptor of the result matrix is displayed. If the
key is released within about 3 seconds, the operation is performed, and the
descriptor of the result matrix is placed in the X-register. If the key is held
down longer, the operation is not performed and the calculator displays
null.

Copying a Matrix

To copy the elements of a matrix into the corresponding elements of
another matrix, use the O > sequence:

1. Press l > followed by the letter key specifying the

matrix to be copied. This enters the descriptor of the matrix into
the display.

2. Press O> followed by the letter key specifying the

matrix to be copied into.

If the matrix specified after l does not have the same dimensions as the
matrix specified after O, the second matrix is redimensioned to agree
with the first. The matrix specified after O need not already be
dimensioned.

Example: Copy matrix A from the previous example into matrix B.

Keystrokes

Display

l>
A

A

2

3 Displays descriptor of

matrix to be copied.

O>
B

A

2

3

Redimensions matrix B and
copies A into B.

l>
B

b

2

3

Displays descriptor of new
matrix B.

One-Matrix Operations

The following table shows functions that operate on only the matrix
specified in the X-register. Operations involving a single matrix plus a
number in another stack register are described under Scalar Operations
(page 151).