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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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