/// <summary>
 /// Transforms the indices from internal to external indices.
 /// </summary>
 /// <remarks>
 /// Opposite of <see cref="ExternalToInternal(LinearSystemIndices)"/>.
 /// </remarks>
 /// <param name="indices">The row/column indices.</param>
 public void InternalToExternal(LinearSystemIndices indices)
 {
     indices.Row    = Row.Reverse(indices.Row);
     indices.Column = Column.Reverse(indices.Column);
 }
 /// <summary>
 /// Transforms the indices from external to internal indices.
 /// </summary>
 /// <remarks>
 /// Opposite of <see cref="InternalToExternal(LinearSystemIndices)"/>.
 /// </remarks>
 /// <param name="indices">The row/column indices.</param>
 public void ExternalToInternal(LinearSystemIndices indices)
 {
     indices.Row    = Row[indices.Row];
     indices.Column = Column[indices.Column];
 }