message: Replacing comments.
diff: @@ -694,8 +694,10 @@ protected:
  double time;
  public:
  + /// Construct a dim x dim matrix coefficient.
  explicit MatrixCoefficient(int dim) { height = width = dim; time = 0.; }
  + /// Construct a h x w matrix coefficient.
  MatrixCoefficient(int h, int w) : height(h), width(w), time(0.) { }
  /// Set the time for time dependent coefficients
  @@ -785,6 +787,7 @@ public:
  mat.SetSize(0);
  }
  + /// Evaluate the matrix coefficient at @a ip.
  virtual void Eval(DenseMatrix &K, ElementTransformation &T,
  const IntegrationPoint &ip);
  