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FractionalPart

Usage

FractionalPart[x] gives the fractional part of x.


Notes

• Mathematical function (see Section A.3.10).
FractionalPart[x] in effect takes all digits to the right of the decimal point and drops the others.
• Examples: FractionalPart[2.4]LongRightArrow ; FractionalPart[2.6]LongRightArrow ; FractionalPart[-2.4]LongRightArrow ; FractionalPart[-2.6]LongRightArrow .
FractionalPart[x] + IntegerPart[x] is always exactly x.
FractionalPart[x] yields a result when x is any numeric quantity, whether or not it is an explicit number.
• Example: FractionalPart[Pi^2]LongRightArrow .
• For exact numeric quantities, FractionalPart internally uses numerical approximations to establish its result. This process can be affected by the setting of the global variable $MaxExtraPrecision.
• See Section 3.2.2.
• See also: IntegerPart, Mod.
• New in Version 3.


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