(PHP 4, PHP 5, PHP 7)
Sine
float sin ( float $arg )
sin() returns the sine of the arg parameter. The arg parameter is in radians.
Parameters:
arg
A value in radians
Returns:
The sine of arg
Examples:
sin() example
<?php // Precision depends on your precision directive echo sin(deg2rad(60)); // 0.866025403 ... echo sin(60); // -0.304810621 ... ?>
See also:
asin() -
sinh() -
cos() -
tan() -
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