--- src/gfanlib_matrix.h.orig	2017-06-20 14:47:37 UTC

+++ src/gfanlib_matrix.h

@@ -115,6 +115,7 @@ template <class typ> class Matrix{ (public)

         	  p[i][j]=s*(q[i][j]);

       return p;

     }

+#if 0

   friend Matrix operator*(const Matrix& a, const Matrix& b)

     {

       assert(a.width==b.height);

@@ -123,6 +124,7 @@ template <class typ> class Matrix{ (public)

         ret[i]=a.vectormultiply(b.column(i));

       return ret.transposed();

     }

+#endif

   /*  template<class T>

     Matrix<T>(const Matrix<T>& c):v(c.size()){

     for(int i=0;i<size();i++)v[i]=typ(c[i]);}