TI-89 / TI-92 Plus / Voyage™ 200 PLT Statistics with List Editor App ƒ Tools Menu 30
Clear a-z
Description
ƒ (Tools) Æ 7:Clear a-z
Clear a-z deletes from calculator memory all single-character variable names (a-z) in the
current folder, unless the variables are locked or archived.
Single-character variable names are often used in symbolic calculations such as:
solve(aøxñ+bøx+c=0,x)
Note: If variables have already been assigned a value, the calculation may produce misleading results.
To prevent this, select 1:Clear a–z before starting the calculation.
Tip: You can make sure that a variable you want to keep is not inadvertently deleted by 7:Clear a-z.
Simply name any variable that you want to retain using multiple characters.
Example
1. Press ƒ (Tools) and select 7:Clear a-z to display the Clear a-z dialog box.
2. Press ¸ to clear all single-character variable names (a-z). Press N to abort the
action.
Note: You cannot use the Clear a-z command in a program; instead, use the DelVar command.
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