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<?php namespace PhpOffice\PhpSpreadsheet\Calculation\MathTrig\Trig; use PhpOffice\PhpSpreadsheet\Calculation\ArrayEnabled; use PhpOffice\PhpSpreadsheet\Calculation\Exception; use PhpOffice\PhpSpreadsheet\Calculation\MathTrig\Helpers; class Secant { use ArrayEnabled; /** * SEC. * * Returns the secant of an angle. * * @param array|float $angle Number, or can be an array of numbers * * @return array|float|string The secant of the angle * If an array of numbers is passed as the argument, then the returned result will also be an array * with the same dimensions */ public static function sec($angle) { if (is_array($angle)) { return self::evaluateSingleArgumentArray([self::class, __FUNCTION__], $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 array|float $angle Number, or can be an array of numbers * * @return array|float|string The hyperbolic secant of the angle * If an array of numbers is passed as the argument, then the returned result will also be an array * with the same dimensions */ public static function sech($angle) { if (is_array($angle)) { return self::evaluateSingleArgumentArray([self::class, __FUNCTION__], $angle); } try { $angle = Helpers::validateNumericNullBool($angle); } catch (Exception $e) { return $e->getMessage(); } return Helpers::verySmallDenominator(1.0, cosh($angle)); } }
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