# Wolfram Language & System 10.0 (2014)|Legacy Documentation

This is documentation for an earlier version of the Wolfram Language.
BUILT-IN WOLFRAM LANGUAGE SYMBOL

# Circle

Circle[{x,y},r]
represents a circle of radius r centered at .

Circle[{x,y}]
gives a circle of radius 1.

Circle[{x,y},{rx,ry}]
gives an axis-aligned ellipse with semi-axes lengths and .

Circle[{x,y},,{θ1,θ2}]
gives a circular or ellipse arc from angle to .

## DetailsDetails

• Circle with its different parameter settings is also known as arc, circular arc, semicircle, and ellipse.
• Circle can be used as a geometric region and a graphics primitive.
• Circle[] is equivalent to Circle[{0,0}]. »
• Circle represents the curve .
• Angles are measured in radians counterclockwise from the positive x direction.
• Circle can be used in Graphics.
• In graphics, the point and radii r and can be Scaled, Offset, ImageScaled, and Dynamic expressions.
• Graphics rendering is affected by directives such as Thickness, Dashing, and color.

## ExamplesExamplesopen allclose all

### Basic Examples  (5)Basic Examples  (5)

A unit circle:

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A circular arc:

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An ellipse:

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Differently styled circles:

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ArcLength of a circle:

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Length or circular arc:

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