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# LogiView

## Function 'exp'

| This function returns the result of the "natural" exponential function (inverse function for the natural logarithm 'ln').
| ### Syntax:
| {INT_VAR|FLO_VAR} = exp({NUM_EXPR})
| ### I/O parameters:
| {NUM_EXPR} | Value to be calculated
| - |
| ### Return value:
| {INT_VAR|FLO_VAR} | Integer or float value containing the result of this function
| ### Example:
| Declaration of Variables
    10 DOCU_FLOAT_1= exp(0.5)
    20 put(DOCU_FLOAT_1)
| Result:
| In order to prevent errors, the float/double type must be used if results can be expected to be either very large or very small (<2^-31 or > 2^31).
| Functions and commands: Mathematics