radian : Java Glossary

by Roedy Green ©1996-2009 Canadian Mind Products
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radian

A unit of angular measure. A complete circle is 2π radians. One radian is about 57.2957795 degrees, measured counterclockwise from due east. Java’s Math. sin and Math. cos etc. work in radians.

There are two java.lang. Math convenience methods for interconverting degrees and radians.

// built-in radians <-> degrees methods.
public static double toDegrees ( double angleInRadians );
public static double toRadians ( double angleInDegrees );

AffineTransform
co-ordinate systems
co-ordinates
gore
Math gotchas
pi/π
polar co-ordinates
trigonometry

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