src/Maths/Algebra/Matrix.php
public function currentXY()
    {
        return ($this->validXY() ? $this->data[$this->keyX(true)][$this->keyY(true)] : null);
    }
public function currentXY()
    {
        return ($this->validXY() ? $this->data[$this->keyX(true)][$this->keyY(true)] : null);
    }
Get current `x:y` value (cell)

@return mixed|null