/// <summary>
/// Returns the transpose of this matrix.
/// </summary>
public virtual DenseColumnMajorStorage <T> Transpose()
{
var result = DenseColumnMajorStorage <T> .Create(columns, rows);
this.Transpose(result);
return(result);
}
/// <summary>
/// Returns a sub-matrix with values in given range.
/// </summary>
/// <param name="rowIndex">The row to start copying to.</param>
/// <param name="rowCount">The number of rows to copy. Must be positive.</param>
/// <param name="columnIndex">The column to start copying to.</param>
/// <param name="columnCount">The number of columns to copy. Must be positive.</param>
public DenseColumnMajorStorage <T> SubMatrix(int rowIndex, int rowCount, int columnIndex, int columnCount)
{
var result = DenseColumnMajorStorage <T> .Create(rowCount, columnCount);
CopySubMatrixTo(result, rowIndex, 0, rowCount, columnIndex, 0, columnCount);
return(result);
}
/// <summary>
/// Dense matrix multiplication, C = A*B
/// </summary>
/// <param name="other">The dense matrix multiplied to this instance.</param>
/// <param name="options">Parallel options (optional).</param>
/// <returns>C = A*B</returns>
public DenseColumnMajorStorage <T> ParallelMultiply(DenseColumnMajorStorage <T> other, System.Threading.Tasks.ParallelOptions options = null)
{
int m = this.rows;
int n = other.columns;
// check inputs
if (this.columns != other.RowCount)
{
throw new ArgumentException(Resources.MatrixDimensions, "other");
}
var result = DenseColumnMajorStorage <T> .Create(m, n);
ParallelMultiply(other, result, options);
return(result);
}
/// <summary>
/// Dense matrix multiplication, C = A*B
/// </summary>
/// <param name="other">The dense matrix multiplied with this instance.</param>
/// <returns>C = A*B</returns>
public DenseColumnMajorStorage <T> Multiply(DenseColumnMajorStorage <T> other)
{
int m = this.rows;
int n = other.columns;
// check inputs
if (this.columns != other.RowCount)
{
throw new ArgumentException(Resources.MatrixDimensions, "other");
}
var result = DenseColumnMajorStorage <T> .Create(m, n);
Multiply(other, result);
return(result);
}
/// <summary>
/// Adds two matrices in CSC format, C = A + B, where A is current instance.
/// </summary>
public DenseColumnMajorStorage <T> Add(DenseColumnMajorStorage <T> other)
{
int m = this.rowCount;
int n = this.columnCount;
// check inputs
if (m != other.RowCount || n != other.ColumnCount)
{
throw new ArgumentException(Resources.MatrixDimensions, "other");
}
var result = DenseColumnMajorStorage <T> .Create(m, n);
Add(other, result);
return(result);
}
