Tutorial Part D (Automatic Adaptivity)ΒΆ

So far we have not paid any attention to the accuracy of results. In general, computations on a fixed mesh are not very accurate and they should not be trusted. Controlled accuracy can be achieved through adaptive mesh refinement (AMR). Advanced adaptive higher-order FEM (hp-FEM) is one of the main strengths of Hermes. With eight modes of automatic hp-adaptivity, Hermes excels at delivering highly accurate results with much lower numbers of degrees of freedom than conventional FEM codes.

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Adaptive low-order FEM and hp-FEM