integer definition mathematics
(Or "whole number") One of the finite
numbers in the infinite set
..., -3, -2, -1, 0, 1, 2, 3, ...
An inductive definition of an integer is a number that is either zero or an integer plus or minus one. An integer is a number with no fractional part. If written as a fixed-point
number, the part after the decimal (or other base) point will be zero.
A natural number
is a non-negative integer.