Functions are available to perform string manipulation, mathematical computations, curve calculations and transformations, table lookups and other processing functions.
Function names are not case sensitive (eg. 'abs(-1)' is the same as 'Abs(-1)' is the same as 'ABS(-1)'.
No space is allowed between the name of the function and the
opening parenthesis. min(1,2)
is a valid function
but min (1,2)
is not.