MFEM v4.7.0 Finite element discretization library
Searching...
No Matches
matrix.cpp
Go to the documentation of this file.
1// Copyright (c) 2010-2024, Lawrence Livermore National Security, LLC. Produced
2// at the Lawrence Livermore National Laboratory. All Rights reserved. See files
3// LICENSE and NOTICE for details. LLNL-CODE-806117.
4//
5// This file is part of the MFEM library. For more information and source code
6// availability visit https://mfem.org.
7//
8// MFEM is free software; you can redistribute it and/or modify it under the
9// terms of the BSD-3 license. We welcome feedback and contributions, see file
10// CONTRIBUTING.md for details.
11
12// Implementation of class matrix
13
14#include "matrix.hpp"
15#include <iostream>
16#include <iomanip>
17
18
19namespace mfem
20{
21
22void Matrix::Print (std::ostream & os, int width_) const
23{
24 using namespace std;
25 // output flags = scientific + show sign
26 os << setiosflags(ios::scientific | ios::showpos);
27 for (int i = 0; i < height; i++)
28 {
29 os << "[row " << i << "]\n";
30 for (int j = 0; j < width; j++)
31 {
32 os << Elem(i,j) << " ";
33 if ( !((j+1) % width_) )
34 {
35 os << '\n';
36 }
37 }
38 os << '\n';
39 }
40 os << '\n';
41}
42
43}
virtual real_t & Elem(int i, int j)=0
Returns reference to a_{ij}.
virtual void Print(std::ostream &out=mfem::out, int width_=4) const
Prints matrix to stream out.
Definition matrix.cpp:22
int width
Dimension of the input / number of columns in the matrix.
Definition operator.hpp:28
int height
Dimension of the output / number of rows in the matrix.
Definition operator.hpp:27