Circle.md

Math::Circle

This is the Math::Circle class.

Represents a circle.

Initializer

$circle = Circle($r: Num, $h: Num, $k: Num)

Creates a circle given radius and center coordinates.

• r: Num - Radius.

• h: Num - X-coordinate of center.

• k: Num - Y-coordinate of center.

Initializer

$circle = Circle($r: Num, $center: Point)

Creates a circle given radius and center.

• r: Num - Radius.

• center: Point - Center.

Initializer

$circle = Circle($area: Num)

Creates a circle at the origin given area.

• area: Num - Area.

Methods

r

$circle.r

Property. Radius length.

h

$circle.h

Property. Center x-coordinate.

k

$circle.k

Property. Center y-coordinate.

center

$circle.center

Once-computed property. Center point.

r2

$circle.r2

Once-computed property. Squared radius length.

area

$circle.area

Computed property. Area.

d

$circle.d

Computed property. Diameter length.

c

$circle.c

Computed property. Circumference.

diameter

$circle.diameter

Computed property. Diameter length. Same as d.

circumference

$circle.circumference

Computed property. Circumference. Same as c.

formula

$circle.formula

Computed property. Formula in center-radius notation.

hasPoint

$circle.hasPoint($pt: Point)

Tests whether a point is on the circle.

• pt: Point

isTangent

$circle.isTangent($line: Line)

Tests whether a line is tangent to the circle.

• line: Line

isChord

$circle.isChord($seg: Segment)

Tests whether a line segment is a chord of the circle.

• seg: Segment

Equality operator (==)

$circle == ($ehs: Circle)

Equality of two circles.

Class properties

unit

Circle.unit

Unit circle.

End of the Math::Circle class.

This file was generated automatically by the Ferret compiler from Circle.frt.