sin
sin
(PHP 4, PHP 5, PHP 7)
sin — Sine
Description
复制代码float sin ( float $arg ) sin() returns the sine of the arg parameter. The arg parameter is in radians.
Parameters
arg
A value in radians
Return Values
The sine of arg
Examples
Example #1 sin() example
复制代码<?php
// Precision depends on your precision directive
echo sin(deg2rad(60) // 0.866025403 ...
echo sin(60 // -0.304810621 ...
?>See Also
- asin() - Arc sine
- sinh() - Hyperbolic sine
- cos() - Cosine
- tan() - Tangent
- deg2rad() - Converts the number in degrees to the radian equivalent
← round
sinh →
复制代码 © 1997–2017 The PHP Documentation GroupLicensed under the Creative Commons Attribution License v3.0 or later.
