PHP sin() Function – Description, Parameters, Return Value, and Example
This article explains the PHP sin() function, detailing its signature, the radian‑based argument it accepts, the floating‑point sine value it returns, and provides example code demonstrating its usage and precision considerations.
sin() is a PHP function that returns the sine of a given angle expressed in radians.
Signature: float sin(float $arg) Parameter: $arg – the angle in radians.
Return value: The sine of $arg as a float.
Example:
<?php
// The precision of the result is determined by the configuration's precision setting
echo sin(deg2rad(60)); // 0.866025403 ...
echo sin(60); // -0.304810621 ...
?>Signed-in readers can open the original source through BestHub's protected redirect.
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