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<?php namespace PhpOffice\PhpSpreadsheet\Calculation\MathTrig\Trig; use PhpOffice\PhpSpreadsheet\Calculation\Exception; use PhpOffice\PhpSpreadsheet\Calculation\MathTrig\Helpers; class Secant { /** * SEC. * * Returns the secant of an angle. * * @param float $angle Number * * @return float|string The secant of the angle */ public static function sec($angle) { try { $angle = Helpers::validateNumericNullBool($angle); } catch (Exception $e) { return $e->getMessage(); } return Helpers::verySmallDenominator(1.0, cos($angle)); } /** * SECH. * * Returns the hyperbolic secant of an angle. * * @param float $angle Number * * @return float|string The hyperbolic secant of the angle */ public static function sech($angle) { try { $angle = Helpers::validateNumericNullBool($angle); } catch (Exception $e) { return $e->getMessage(); } return Helpers::verySmallDenominator(1.0, cosh($angle)); } }