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gmres.h

@@ -0,0 +1,13 @@
+#include "vec.h"
+#include "smat.h"
+#include "mat.h"
+#include "sparsemat.h"
+#include "nonclass.h"
+
+//GMRES solution of a linear system
+
+//matrix can be any class which has nrows(), ncols(), diagonalof() and NRVec::gemv() available
+//does not even have to be explicitly stored
+
+template<typename T, typename Matrix>
+extern void gmres(const Matrix &bigmat, const NRVec<T> &b, NRVec<T> &x, const bool doguess=1, const double eps=1e-7, const int MAXIT=50, int neustart=0, const bool verbose=1, bool square=1,const bool precondition=1);