Reverse String

Inputs

string - A string

Outputs

The reversal of the input string, or an empty string if the input is not a string.

Variables Used

s, temp, i
All are created locally in the program.

Calculator Compatibility

TI-89/92/+/V200

:reverse(s)
:Func
:Local i,temp
:""→temp
:If getType(s)=getType(temp) Then
: For i,1,dim(s)
:  mid(s,i,1)&temp→temp
: EndFor
:EndIf
:EndFunc

This function requires the user to enter a string as an argument. Many would object that a "return" is needed at the end. This is not true, because, if there is no "return" statement, the calculator automatically returns the last value that it calculated.

Error Conditions

None

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