Check that a number is included in an interval:

Use an operator form:

For symbolic expressions, the result is given as inequalities:

Select the numbers between 10 and 20, both included:

Discard those numbers instead:

Use Between with numbers:

Use Between with numeric Quantity objects:

Use Between with dates:

Use Between with intervals:

Use centered intervals as well:

Use Between with date intervals:

Use Between with the union of several ranges:

Use Between with a multi-range interval and quantities:

Use Between in operator form:

Use symbolic values:

Find the particles whose mass is in a given range:

Find surfaces with algebraic degree between 7 and 10, both included:

Find movies with runtime in a given range, returning the result as an association:

Take tabular data about car models:

Select the cars whose "mpg" value is between 39 and 40:

Between[x,{min,max}] includes the min, max limits:

The limits min, max in Between[x,{min,max}] are assumed to be sorted:

Use Interval to sort limits automatically:

Symbolic limits in Between are assumed to be sorted:

Use the limits in both orders to bypass this assumption:

Equivalently, wrap Interval around the limits:

Between[x,{}] returns False, because there are no intervals that include x:

Use Interval objects and IntervalMemberQ instead of Between:

Alternatively, use intervals directly in Between:

Use CenteredInterval range specifications:

Like LessEqual, Between uses seven bits of tolerance when comparing inexact real numbers:

Compare to IntervalMemberQ, which uses only one bit of tolerance: