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PHP sin () function

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Examples

Returns the sine of different numbers:

<?php
echo(sin(3) . "<br>");
echo(sin(-3) . "<br>");
echo(sin(0) . "<br>");
echo(sin(M_PI) . "<br>");
echo(sin(M_PI_2));
?>

Running instance »

Definition and Usage

sin () function returns the sine of a number.


grammar

sin( number );

参数 描述
number 必需。规定一个弧度值。

technical details

return value: number of sine.
Return type: Float
PHP version: 4+


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