# Modulo

From Avisynth wiki

*"mod" redirects here. For the *modulo operator*, see here. For a modded script, plugin, etc., search for that item by name.*

A mathematical operation, defined as the remainder after an integer division.

Thus a mod b = 'the smallest positive remainder of a' after subtracting as many times b as possible.

Examples:

15 mod 4 = 3 since 15-3*4 = 3 42 mod 9 = 6 since 42-4*9 = 6 15 mod 5 = 0 since 15-3*5 = 0, etc ...

In image processing, to say that a resolution is *mod 16* means that the both the width and height are a multiple of *16*, i.e. **width mod 16 = 0** and **height mod 16 = 0**.

Sometimes written as 'mod8', 'mod16' etc.