29 lines
578 B
PHP
29 lines
578 B
PHP
<?php
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namespace PhpOffice\PhpSpreadsheet\Calculation\MathTrig;
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use Exception;
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class Coth
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{
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/**
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* COTH.
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*
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* Returns the hyperbolic cotangent of an angle.
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*
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* @param float $angle Number
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*
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* @return float|string The hyperbolic cotangent of the angle
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*/
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public static function evaluate($angle)
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{
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try {
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$angle = Helpers::validateNumericNullBool($angle);
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} catch (Exception $e) {
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return $e->getMessage();
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}
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return Helpers::verySmallDenominator(1.0, tanh($angle));
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}
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}
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