private double CalculateMinor(int i, int j)
        {
            return CreateMatrixWithoutColumn(j)
                .CreateMatrixWithoutRow(i)
                .CalculateDeterminant();
        }

        public Matrix CreateInvertibleMatrix()
        {
            if (this.rows != this.cols)
                return null;
            var determinant = CalculateDeterminant();
            if (Math.Abs(determinant) < 0.0000001)
                return null;

            var result = new Matrix(rows, cols);
            ProcessFunctionOverData((i, j) =>
            {
                result[i, j] = ((i + j) % 2 == 1 ? -1 : 1) *
                    CalculateMinor(i, j) / determinant;
            });

            result = result.Transpose();
            return result;
        }