BUILT-IN MATHEMATICA SYMBOL

# Disk

Disk[{x, y}, r]
is a two-dimensional graphics primitive that represents a filled disk of radius r centered at the point x, y.

Disk[{x, y}]
gives a disk of radius 1.

Disk[{x, y}, r, {1, 2}]
gives a segment of a disk.

Disk[{x, y}, {rx, ry}]
gives an elliptical disk with semi-axes of lengths and , oriented parallel to the coordinate axes.

## DetailsDetails

• Angles are measured in radians counterclockwise from the positive x direction.
• Disk[{x, y}, {rx, ry}, {1, 2}] yields an elliptical disk segment obtained by transforming a circular disk segment with the specified starting and ending angles. »
• Scaled[{drx, dry}] or Scaled[{drx, dry}, {rx, ry}] can be used in the radius specification. The are in scaled coordinates, and the are in ordinary coordinates.
• Disk[{x, y}, Scaled[s]] gives a disk of scaled radius s. »
• Offset[{ax, ay}] can be used to specify radii in printer's points. »
• FaceForm and EdgeForm can be used to specify how the interiors and boundaries of disks should be rendered. The default is that no explicit edge is drawn. »
• Individual coordinates, lists of coordinates, and parameters in disks can be Dynamic objects.
• Disk[] is equivalent to Disk[{0, 0}]. »

## ExamplesExamplesopen allclose all

### Basic Examples (4)Basic Examples (4)

A unit disk:

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A disk segment:

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An elliptical disk:

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Differently styled unit disks:

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