(PHP 4, PHP 5, PHP 7)
Tangent
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
Returns:
The tangent of arg
Examples:
tan() example
1 2 3 4 5 | <?phpecho tan(M_PI_4); // 1?> |
See also:
atan() -
atan2() -
sin() -
cos() -
tanh() -
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