sub

Syntax

%sub(a,b)
%-(a,b)

Description

Returns the difference of two floating-point numbers.
Notes
If an argument is not a valid number, it will be treated as if it were 0.
Integer arguments to %sub() are promoted to floating point.
Floating point arguments to %sub() are truncated to the nearest integer before subtracting.
Only two arguments are examined.
%null% is returned if only one argument is supplied.