User Manual

Chapter 10: Matrices 147
Select the matrix from the
MATRX EDIT menu, and then enter or accept the dimensions.
Using Viewing-Context Keys
Key Function
| or ~
Moves the cursor within the current row
† or } Moves the cursor within the current column; on the top row, }
moves the cursor to the column dimension; on the column
dimension,
} moves the cursor to the row dimension
Í
Switches to editing context; activates the edit cursor on the bottom
line
‘
Switches to editing context; clears the value on the bottom line
Any entry character Switches to editing context; clears the value on the bottom line;
copies the character to the bottom line
y 6
Nothing
{
Nothing
Editing a Matrix Element
In editing context, an edit cursor is active on the bottom line. To edit a matrix element value, follow
these steps.
1. Select the matrix from the MATRX EDIT menu, and then enter or accept the dimensions.
2. Press |, }, ~, and † to move the cursor to the matrix element you want to change.
3. Switch to editing context by pressing Í, ‘, or an entry key.
4. Change the value of the matrix element using the editing-context keys described below. You
may enter an expression, which is evaluated when you leave editing context.
Note: You can press ‘ Í to restore the value at the cursor if you make a mistake.
5. Press Í, }, or † to move to another element.