User Guide

Chapter 10: Matrices 148
Using Editing-Context Keys
Key Function
| or ~
Moves the edit cursor within the value
† or }
Stores the value displayed on the edit line to the matrix element;
switches to viewing context and moves the cursor within the
column
Í
Stores the value displayed on the edit line to the matrix element;
switches to viewing context and moves the cursor to the next row
element
‘
Clears the value on the bottom line
Any entry character Copies the character to the location of the edit cursor on the
bottom line
y 6
Activates the insert cursor
{
Deletes the character under the edit cursor on the bottom line
Using Matrices with Expressions
To use a matrix in an expression, you can do any of the following.
• Copy the name from the
MATRX NAMES menu.
• Recall the contents of the matrix into the expression with y K (Chapter 1).
• Enter the matrix directly (see below).
Entering a Matrix in an Expression
You can enter, edit, and store a matrix in the matrix editor. You also can enter a matrix directly in
an expression.
To enter a matrix in an expression, follow these steps.
1. Press y [ [ ] to indicate the beginning of the matrix.
2. Press y [ [ ] to indicate the beginning of a row.
3. Enter a value, which can be an expression, for each element in the row. Separate the values
with commas.
4. Press y [ ] ] to indicate the end of a row.
5. Repeat steps 2 through 4 to enter all of the rows.
6. Press y [ ] ] to indicate the end of the matrix.
The resulting matrix is displayed in the form:
[[element1,1,...,element1,n],...,[elementm,1,...,elementm,n]]
Any expressions are evaluated when the entry is executed.