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PHP in a Nutshell
book

PHP in a Nutshell

by Paul Hudson
October 2005
Intermediate to advanced content levelIntermediate to advanced
372 pages
11h 35m
English
O'Reilly Media, Inc.
Content preview from PHP in a Nutshell

Name

deg2rad()

Synopsis

    float deg2rad ( float num )

The deg2rad() function converts degrees to radians. Radians are calculated as being $degrees multiplied by the mathematical constant pi, then divided by 180.

    $sin1 = sin(deg2rad(80));
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Publisher Resources

ISBN: 0596100671Errata Page