# Region

Returns the region between a pair of curves.

## Syntax

## Description

#### region(Curve)

Given a curve, returns the region between such a curve and the horizontal axis.

#### region(Curve, Range)

Given a curve and a range , returns the region between such a curve and the horizontal axis between and .

#### region(Curve, Curve)

Given two curves, returns the region between these curves.

#### region(Curve, Curve, Range)

Given two curves and a range , returns the region between these curves between and .