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10-6 Matrices
8310MTRX.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 12:35 PM Printed: 02/19/01 1:36
PM Page 6 of 16
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
rectangular cursor if you make a mistake.
5. Press
Í
,
}
, or
†
to move to another element.
Key Function
|
or
~
Moves the edit cursor within the value.
†
or
}
Stores the value displayed on the bottom
line to the matrix element; switches to
v
iewin
g
context and moves the rectan
g
ular
cursor within the column.
Í
Stores the value displayed on the bottom
line to the matrix element; switches to
v
iewin
g
context and moves the rectan
g
ular
cursor to the next row 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 the insert cursor.
{
Deletes the character under the edit cursor
on the bottom line.
Editing a Matrix
Element
Editing-Context
Keys