Arithmetic Functions

You can use any of the arithmetic functions implemented in the java.lang.Math class: http://download.oracle.com/javase/6/docs/api/java/lang/Math.html.

In addition to that, the following functions are available:
Syntax Details
oxy_add(param1, ... , paramN, 'returnType') Adds the values of all parameters from param1 to paramN.
oxy_subtract(param1, ..., paramN, 'returnType') Subtracts the values of parameters param2 to paramN from param1.
oxy_multiply(param1, ..., paramN, 'returnType') Multiplies the values of parameters from param1 to paramN.
oxy_divide(param1, param2, 'returnType') Performs the division of param1 to param2.
oxy_modulo(param1, param2, 'returnType') Returns the reminder of the division of param1 to param2.
Note: The returnType can be 'integer', 'number', or any of the supported CSS measuring types.