Calculator User Manual

Memory and Variable Management 714
• Opening a text variable in the Text Editor.
• Opening a data variable, list, or matrix in the Data/Matrix Editor.
• Opening a program or function in the Program Editor.
• Running a program or referring to a function.
Note: A temporary copy lets you open or execute an archived variable. However, you
cannot save any changes to the variable.
So that you do not have to unarchive variables unnecessarily, the TI-89 Titanium
performs a “behind-the scenes” copy. For example, if you run a program that is in the
user data archive, the TI-89 Titanium:
1. Copies the program to RAM.
2. Runs the program.
3. Deletes the copy from RAM when the program is finished.
The error message is displayed if there is not enough free RAM for the temporary copy.
Note: Except for programs and functions, referring to an archived variable does not copy
it. If variable ab is archived, it is not copied if you perform
6ùab.
Correcting the Error
Correcting the ErrorCorrecting the Error
Correcting the Error
To free up enough RAM to access the variable:
1. Use the
VAR-LINK screen (2 °) to determine the size of the archived
variable that you want to access.
2. Use the
MEMORY screen (2 ;) to check the RAM free size.