Crystal Reports for Eclipse Designer Guide

Modulus (x Mod y)

Usage
x Mod y 
Divides x by y and returns a remainder that is a whole number. The Number values x and y can be positive or negative, and they can be fractional. If x or y is fractional, it will be first rounded before the modulus is taken.
Examples
83 Mod 10
Returns 3.
10 Mod 3
Returns 1.
-10 Mod 3
Returns -1.
10 Mod -3
Returns 1.
10 Mod 3.5
Returns 2 since 3.5 is first rounded to 4 before the modulus is taken.



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