Description
The Subtract$ function subtracts two strings representing floating point numbers.
Usage
As only integers are supported numbers in WinTask, calculation on floating point numbers is done using their string representation.
Syntax
res$=Subtract$(a$,b$[,rc])
Parameters
a$, b$ are the strings representing the two floating numbers to subtract.
rc, optional numeric return code.
Values are:
- 0 if the operation was successful
- 1 invalid operation because parameters are incorrect (for instance, the string can’t be considered as a number)
- 2 if the operation causes an overflow
Return Value
res$, string representing a$ - b$.
See Also
#Precision
Examples
Subtract$("13.56","145.789") 'gives "-132.23"
Subtract$("-45.678","34.8976") 'gives "-80.58"
#Precision=3
Subtract$("567.34257","45.343") 'gives "522.000"
