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+h- and r-adaptivity.
+
+* excellent results in the stored graphs
+
+* unique(mesh): incl. also sorting of mesh nodes (new to GH).
+
+A: 
+* integral() such hat int(f(x),element) is accurate
+
+C: addition convection term not correct? boundary layer for p=70 on wrong end of domain
+
+besides that: very good!