Secant.php

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<?php
 
namespace PhpOffice\PhpSpreadsheet\Calculation\MathTrig\Trig;
 
use PhpOffice\PhpSpreadsheet\Calculation\Exception;
use PhpOffice\PhpSpreadsheet\Calculation\MathTrig\Helpers;
 
class Secant
{
    public static function sec($angle)
    {
        try {
            $angle = Helpers::validateNumericNullBool($angle);
        } catch (Exception $e) {
            return $e->getMessage();
        }
 
        return Helpers::verySmallDenominator(1.0, cos($angle));
    }
 
    public static function sech($angle)
    {
        try {
            $angle = Helpers::validateNumericNullBool($angle);
        } catch (Exception $e) {
            return $e->getMessage();
        }
 
        return Helpers::verySmallDenominator(1.0, cosh($angle));
    }
}