Using Matrices With Expressions - Texas Instruments TI-84 PLUS - Graphing Calculator Manual Book

Using Editing-Context Keys
Key
| ~
or
† }
or
Í
'
Any entry character
y 6
{

Using Matrices with Expressions

To use a matrix in an expression, you can do any of the following.
• Copy the name from the
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],
Any expressions are evaluated when the entry is executed.
Function
Moves the edit cursor within the value
Stores the value displayed on the edit line to the matrix element;
switches to viewing context and moves the cursor within the
column
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
Copies the character to the location of the edit cursor on the
bottom line
Activates the insert cursor
Deletes the character under the edit cursor on the bottom line
menu.
MATRX NAMES
... ...
,[elementm,1, ,elementm,n]]
Chapter 10: Matrices 148