fractional part

The fractional part of a nonnegative real number is the part of the number that appears after the decimal . For example, the fractional part of 73 is 13.

To be more precise, for x with x0, the fractional part of x, denoted as {x}, is given by {x}=x-[x], where [x] denotes the integer part of x.

The name “fractional part” is somewhat of a misnomer: To the novice, the name may seem to imply that the result must be a fraction (and therefore rational), which is not the case. For example, {π}=π-3, which is not rational.

Title fractional part
Canonical name FractionalPart
Date of creation 2013-03-22 16:14:13
Last modified on 2013-03-22 16:14:13
Owner Wkbj79 (1863)
Last modified by Wkbj79 (1863)
Numerical id 7
Author Wkbj79 (1863)
Entry type Definition
Classification msc 11-00
Classification msc 26A09
Related topic IntegerPart