For any real number x, its fractional part is equal to x−[x], where [x] is the integer part of x. It may be denoted by {x}. The fractional part r of any real number always satisfies 0 ≤ r<1.
Computer
1. The part of a number to the right of the radix point.
2.Another name formantissa or significand. Seefloating-point notation.