/// <summary>
/// Transposes the matrix and stores the result in the output matrix
/// </summary>
/// <param name="output">The matrix in which the result will be stored.</param>
public void Transpose([NotNull] MatrixF output)
{
if (output == null)
{
throw new ArgumentNullException(nameof(output));
}
if (this.Rows != output.Columns || this.Columns != output.Rows)
{
throw new ArgumentException(
$"The output matrix has the wrong size (Size: {output.Rows}x{output.Columns}, Required: {this.Columns}x{this.Rows}");
}
this.TransposeInternal(output);
}
/// <summary>
/// Does the multiplication process, can assume that the preconditions are met.
/// </summary>
/// <param name="other">The other matrix.</param>
/// <param name="output">The output matrix (Preinitialized).</param>
protected virtual void MultiplyInternal([NotNull] MatrixF other, [NotNull] MatrixF output)
{
for (var i = 0; i < this.Rows; i++)
{
for (var j = 0; j < other.Columns; j++)
{
float entry = 0;
for (int lr = 0; lr < this.Columns; lr++)
{
entry += this.GetAt(i, lr) * other.GetAt(lr, j);
}
output.SetAt(i, j, entry);
}
}
}
public MatrixF Multiply([NotNull] MatrixF other)
{
if (other == null)
{
throw new ArgumentNullException(nameof(other));
}
if (this.Columns != other.Rows)
{
throw new ArgumentException(
$"The amount of columns of the left matrix mismatch the amount of rows of the right matrix. (left: {this.Columns}, right: {other.Rows})");
}
var result = MatrixFactory.ZeroF(this.Rows, other.Columns);
this.MultiplyInternal(other, result);
return(result);
}
