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tan

Tangent (PHP 4, PHP 5)
float tan ( float arg )

tan() returns the tangent of the arg parameter. The arg parameter is in radians.

Parameters

arg

The argument to process in radians

Return Values

The tangent of arg

Examples

Example 1163. tan() example

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<?php

echo tan(M_PI_4); // 1

?>


See Also
atan()
atan2()
sin()
cos()
tanh()
deg2rad()


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