当前路径：vendor/markbaker/complex/classes/src/functions/acoth.php
<?php
/**
*
* Function code for the complex acoth() function
*
* @copyright Copyright (c) 2013-2018 Mark Baker (https://github.com/MarkBaker/PHPComplex)
* @license https://opensource.org/licenses/MIT MIT
*/
namespace Complex;
/**
* Returns the inverse hyperbolic cotangent of a complex number.
*
* @param Complex|mixed $complex Complex number or a numeric value.
* @return Complex The inverse hyperbolic cotangent of the complex argument.
* @throws Exception If argument isn't a valid real or complex number.
* @throws \InvalidArgumentException If function would result in a division by zero
*/
function acoth($complex)
{
$complex = Complex::validateComplexArgument($complex);
return atanh(inverse($complex));
}
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