evalInCaller
Evaluate an expression in the context of the caller of the currently executing function.
(value)=evalInCaller(expr)
Inputs
expr A string containing the expression to be evaluated.
Outputs
value The value of the expression to be evaluated.


Example
>>function f1(x)
 >y=f2("x+2")
 >disp(y)
 >end
>>function f2(exp)
 >return evalInCaller(exp)
 >end
>>f1(10)
   12