Application Guide

Reference function f1 can be locked to prevent
unintended change.
Variables you Cannot Lock
• System variable Ans
• stat. and tvm. variable groups
Important Information About Locked Variables
• To lock variables, use the Lock command.
• To modify or delete a locked variable, you must first unlock the item.
• Locked variables display a lock icon on the variable menu list.
• The Lock command clears the Redo/Undo history when applied to unlocked
variables.
Examples of Locking
Lock a,b,c
Locks variables a, b, and c from the Calculator application.
Lock mystats.
Locks all members of variable group mystats.
UnLock func2
Unlocks variable func2.
lm:=getLockInf
(var2)
Retrieves the current lock status of var2 and assigns that value to
lm in the Calculator application.
For more information, see the Reference Guide.
Updating a Variable
If you want to update a variable with the result of a calculation, you must store the
result explicitly.
Entry Result Comment
a := 2
2
a
3
8
Result not stored in variable a.
a
2
Using Variables 159