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<?php
namespace PhpOffice\PhpSpreadsheet\Calculation\MathTrig\Trig;
use PhpOffice\PhpSpreadsheet\Calculation\Exception;
use PhpOffice\PhpSpreadsheet\Calculation\MathTrig\Helpers;
class Cosecant
{
/**
* CSC.
*
* Returns the cosecant of an angle.
*
* @param float $angle Number
*
* @return float|string The cosecant of the angle
*/
public static function csc($angle)
{
try {
$angle = Helpers::validateNumericNullBool($angle);
} catch (Exception $e) {
return $e->getMessage();
}
return Helpers::verySmallDenominator(1.0, sin($angle));
}
/**
* CSCH.
*
* Returns the hyperbolic cosecant of an angle.
*
* @param float $angle Number
*
* @return float|string The hyperbolic cosecant of the angle
*/
public static function csch($angle)
{
try {
$angle = Helpers::validateNumericNullBool($angle);
} catch (Exception $e) {
return $e->getMessage();
}
return Helpers::verySmallDenominator(1.0, sinh($angle));
}
}