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.
