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PHP tanh () function

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Examples

Returns the number of different hyperbolic tangent:

<?php
echo(tanh(M_PI_4) . "<br>");
echo(tanh(0.50) . "<br>");
echo(tanh(-0.50) . "<br>");
echo(tanh(5) . "<br>");
echo(tanh(10) . "<br>");
echo(tanh(-5) . "<br>");
echo(tanh(-10));
?>

Running instance »

Definition and Usage

tanh () function returns the hyperbolic tangent of a number, defined as sinh (x) / cosh (x).


grammar

tanh( number );

参数 描述
number 必需。规定一个数。

technical details

return value: number hyperbolic tangent.
Return type: Float
PHP version: 4.1+


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