CASTI-89 TITANIUM · CALC89
Lock
Locks variables so they cannot be changed or deleted until they are unlocked.
Syntax
Lock Var1[, Var2]…
- Group
- Variables and memory
- Arguments
- Takes one or more variable names, separated by commas.
- Availability
- Included
Example
| Input | Result |
|---|---|
| 5→a:Lock a | Done |
Typing 5→a:Lock a on the home screen and pressing ENTER returns Done.
Related commands
- NewProbStarts a new problem by clearing single letter variables, so values stored earlier do not affect new calculations.
- unLockUnlocks variables that were locked with Lock, so they can be changed or deleted again.
- DefineDefines a user function or variable that can be used in later calculations, for example f(x).
- DelVarDeletes variables from memory so they are undefined again.
- getLockInfo(Returns 1 if a variable is locked and 0 if it is not.