TI-83 Plus Matrices 263
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.