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<?php
namespace Matrix\Operators;
use \Matrix\Matrix;
use \Matrix\Functions;
use Matrix\Exception;
class Division extends Multiplication
{
/**
* Execute the division
*
* @param mixed $value The matrix or numeric value to divide the current base value by
* @throws Exception If the provided argument is not appropriate for the operation
* @return $this The operation object, allowing multiple divisions to be chained
**/
public function execute($value)
{
if (is_array($value)) {
$value = new Matrix($value);
}
if (is_object($value) && ($value instanceof Matrix)) {
try {
$value = Functions::inverse($value);
} catch (Exception $e) {
throw new Exception('Division can only be calculated using a matrix with a non-zero determinant');
}
return $this->multiplyMatrix($value);
} elseif (is_numeric($value)) {
return $this->multiplyScalar(1 / $value);
}
throw new Exception('Invalid argument for division');
}
}