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.