[Dune] [#1034] Wrong datatype in MINRESSolver

[Dune]

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FS#1034 - Wrong datatype in MINRESSolver
User who did this - Christian Engwer (christi)

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Patrick, could you please supply a small test-app? I doubt that it is necessary to have beta as complex<T>. I think it is sufficient (but I didn't test it) to change

- beta = sqrt(fabs(_sp.dot(z,b)));
+ beta = std::sqrt(std::abs(_sp.dot(z,b)));

I updated solvers.hh accordingly. Could you please try with the latest version of dune-istl?

Christian

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