/// <summary> /// Convert a <see cref="FieldMatrix"/>/<see cref="BigFraction"/> matrix to a /// <see cref="RealMatrix"/>. /// </summary> /// <param name="m">Matrix to convert.</param> /// <returns>the converted matrix.</returns> public static Array2DRowRealMatrix bigFractionMatrixToRealMatrix(FieldMatrix <BigFraction> m) { BigFractionMatrixConverter converter = new BigFractionMatrixConverter(); m.walkInOptimizedOrder(converter); return(converter.getConvertedMatrix()); }
/// <inheritdoc/> public FieldMatrix <T> getSubMatrix(int[] selectedRows, int[] selectedColumns) { // safety checks checkSubMatrixIndex(selectedRows, selectedColumns); // copy entries FieldMatrix <T> subMatrix = createMatrix(selectedRows.Length, selectedColumns.Length); subMatrix.walkInOptimizedOrder(new DefaultFieldMatrixChangingVisitorAnonymous1 <T>(field.getZero(), selectedRows, selectedColumns, this)); return(subMatrix); }