!!Determines if a string value consist of numeric values
!Functionality:
This function returns a boolean TRUE or FALSE if the passed string is numeric

!Parameters:

|STRING |  The test value you want to test

!Returns: 
TRUE/FALSE

!Errors:  
* None


!Notes

* This is normally used in programming logic to ensure that a variable contains numeric values only, so as to prevent other errors from occurring

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![Notes|Edit:Internal.ISNUMBER]
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