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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 Cosine { use ArrayEnabled; /** * COS. * * Returns the result of builtin function cos after validating args. * * @param mixed $number Should be numeric, or can be an array of numbers * * @return array|float|string cosine * If an array of numbers is passed as the argument, then the returned result will also be an array * with the same dimensions */ public static function cos($number) { if (is_array($number)) { return self::evaluateSingleArgumentArray([self::class, __FUNCTION__], $number); } try { $number = Helpers::validateNumericNullBool($number); } catch (Exception $e) { return $e->getMessage(); } return cos($number); } /** * COSH. * * Returns the result of builtin function cosh after validating args. * * @param mixed $number Should be numeric, or can be an array of numbers * * @return array|float|string hyperbolic cosine * If an array of numbers is passed as the argument, then the returned result will also be an array * with the same dimensions */ public static function cosh($number) { if (is_array($number)) { return self::evaluateSingleArgumentArray([self::class, __FUNCTION__], $number); } try { $number = Helpers::validateNumericNullBool($number); } catch (Exception $e) { return $e->getMessage(); } return cosh($number); } /** * ACOS. * * Returns the arccosine of a number. * * @param array|float $number Number, or can be an array of numbers * * @return array|float|string The arccosine of the number * If an array of numbers is passed as the argument, then the returned result will also be an array * with the same dimensions */ public static function acos($number) { if (is_array($number)) { return self::evaluateSingleArgumentArray([self::class, __FUNCTION__], $number); } try { $number = Helpers::validateNumericNullBool($number); } catch (Exception $e) { return $e->getMessage(); } return Helpers::numberOrNan(acos($number)); } /** * ACOSH. * * Returns the arc inverse hyperbolic cosine of a number. * * @param array|float $number Number, or can be an array of numbers * * @return array|float|string The inverse hyperbolic cosine of the number, or an error string * If an array of numbers is passed as the argument, then the returned result will also be an array * with the same dimensions */ public static function acosh($number) { if (is_array($number)) { return self::evaluateSingleArgumentArray([self::class, __FUNCTION__], $number); } try { $number = Helpers::validateNumericNullBool($number); } catch (Exception $e) { return $e->getMessage(); } return Helpers::numberOrNan(acosh($number)); } }
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