Operation Manual

Matrices 10-7
8210MTRX.DOC TI-82, Chapter 10, English Bob Fedorisko Revised: 02/09/01 9:18 AM Printed:
02/09/01 12:38 PM Page 7 of 14
Editing a Matrix Element
In editing context, an edit cursor is active on the bottom line, and you can
change the value of the current matrix element.
1. Use the cursor-movement keys to move the cursor to the matrix
element you want to change.
2. Switch to editing context by pressing
Í
,
‘
, or an entry key.
3. Change the value of the matrix element. You may enter an expression
(which is evaluated when you leave the editing context) for the value.
Note: You can press
‘
, followed by
Í
to restore the value at
the rectangular cursor if you make a mistake.
4. Press
Í
,
}
, or
†
to move to another element.
Editing Context Keys
|
or
~
Moves the edit cursor within the value.
†
or
}
Stores the value on the bottom line to the matrix
element; switches to viewing context and moves the
rectangular cursor within the column.
Í
Stores the value on the bottom line to the matrix
element; switches to viewing context. Rectangular
cursor moves to the next element.
‘
Clears the value on the bottom line.
A
ny entry
character
Copies the character to the location of the edit cursor
on the bottom line.
y
[
INS
] Activates insert cursor.
{
Deletes the character under the edit cursor on the
bottom line.