Cosine.php
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<?php
namespace PhpOffice\PhpSpreadsheet\Calculation\MathTrig\Trig;
use PhpOffice\PhpSpreadsheet\Calculation\Exception;
use PhpOffice\PhpSpreadsheet\Calculation\MathTrig\Helpers;
class Cosine
{
/**
* COS.
*
* Returns the result of builtin function cos after validating args.
*
* @param mixed $number Should be numeric
*
* @return float|string cosine
*/
public static function cos($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 $number Should be numeric
*
* @return float|string hyperbolic cosine
*/
public static function cosh($number)
{
try {
$number = Helpers::validateNumericNullBool($number);
} catch (Exception $e) {
return $e->getMessage();
}
return cosh($number);
}
/**
* ACOS.
*
* Returns the arccosine of a number.
*
* @param float $number Number
*
* @return float|string The arccosine of the number
*/
public static function acos($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 float $number Number
*
* @return float|string The inverse hyperbolic cosine of the number, or an error string
*/
public static function acosh($number)
{
try {
$number = Helpers::validateNumericNullBool($number);
} catch (Exception $e) {
return $e->getMessage();
}
return Helpers::numberOrNan(acosh($number));
}
}