/// <summary>
/// Create a new diagonal matrix and initialize each diagonal value from the provided indexed enumerable.
/// Keys must be provided at most once, zero is assumed if a key is omitted.
/// This new matrix will be independent from the enumerable.
/// A new memory block will be allocated for storing the matrix.
/// </summary>
public static DiagonalMatrix OfIndexedDiagonal(int rows, int columns, IEnumerable <Tuple <int, Complex> > diagonal)
{
return(new DiagonalMatrix(DiagonalMatrixStorage <Complex> .OfIndexedEnumerable(rows, columns, diagonal)));
}
