virtual public Matrix IncludeRow(VectorRow vector, int index)
{
if (index > this.Rows || index < 0)
{
throw new IndexOutOfRangeException("Unable to include row because index is out of range.");
}
if (vector.Length != this.Columns)
{
throw new ArgumentException("Unable to include row because vector-row has invalid length.");
}
double[,] matrix = new double[Rows + 1, Columns];
int _row = 0;
for (int row = 0; row <= this.Rows; row++)
{
if (row == index)
{
for (int col = 0; col < this.Columns; col++)
{
matrix[row, col] = vector[col];
}
continue;
}
for (int col = 0; col < this.Columns; col++)
{
matrix[row, col] = this.matrix[_row, col];
}
_row++;
}
return(new Matrix(matrix));
}
public object ToVector()
{
if (this.Rows == 1)
{
VectorRow vector = new VectorRow(this.Columns);
for (int i = 0; i < this.Columns; i++)
{
vector[i] = matrix[0, i];
}
return(vector);
}
else if (this.Columns == 1)
{
VectorColumn vector = new VectorColumn(this.Rows);
for (int i = 0; i < this.Rows; i++)
{
vector[i] = matrix[i, 0];
}
return(vector);
}
else
{
throw new Exception("Unable to convert matrix to vector.");
}
}
public void SetRow(VectorRow vector, int index)
{
if (index >= Rows || index < 0 || vector.Length != Columns)
{
throw new Exception("Can't set row.");
}
for (int i = 0; i < vector.Length; i++)
{
matrix[index, i] = vector[i];
}
}
public VectorRow GetRow(int index)
{
if (index >= Rows || index < 0)
{
throw new Exception("Can't get row.");
}
var row = new VectorRow(Columns);
for (int i = 0; i < row.Length; i++)
{
row[i] = matrix[index, i];
}
return(row);
}
new public SquareMatrix IncludeRow(VectorRow vector, int index) => new Matrix(this.matrix).IncludeRow(vector, index).ToSquareMatrix();
