/**
* @return Matrix
* @throws NotSquareException
*/
public function adjugateMatrix()
{
if (!$this->properties->isSquare()) {
throw new NotSquareException();
}
$adjugate = new Matrix($this->matrix->getNumRows(), $this->matrix->getNumCols(), $this->precision);
$determinant = new Determinant($this->matrix, $this->precision);
for ($i = 1; $i <= $this->matrix->getNumRows(); $i++) {
for ($j = 1; $j <= $this->matrix->getNumCols(); $j++) {
$cofactor = $determinant->cofactor($i, $j);
$point = new Determinant($cofactor, $this->precision);
$adjugate->setPoint($j, $i, $point->retrieve());
}
}
return $adjugate;
}
/**
* @param $i
* @param $j
* @param int|null $precision
* @return MatrixBase
*/
public function getAdjunto($i, $j, $precision = null)
{
$precision = $this->getPrecision($precision);
$determinant = new Determinant($this->matrix, $precision);
return $determinant->cofactor($i, $j);
}
