Wolfram Language & System 10.3 (2015)|Legacy Documentation

This is documentation for an earlier version of the Wolfram Language.View current documentation (Version 11.2)

Interval Arithmetic

The Wolfram Language automatically uses sophisticated algorithms to track the precision of approximate numbers. Particularly for some verification applications, however, it is convenient to maintain explicit numerical intervals. All the Wolfram Language's basic mathematical functions and operations automatically operate on Interval objects.


Interval represent an interval to be used in mathematical operations

IntervalMemberQ test whether a number lies within an interval

IntervalUnion combine intervals together

IntervalIntersection find common parts of intervals

RootIntervals give lists of isolating intervals for polynomial roots