DOLFIN User Manual - FEniCS Project

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DOLFIN User ManualHoffman, Jansson, Logg, WellsDepending on the actual underlying representation of a Function, it mayalso be possible to evaluate a Function at any given Point.5.1.1 RepresentationCurrently supported representations of Functions include discrete Functionsand user-defined Functions. These are discussed in detail below.5.1.2 EvaluationAll Functions can be evaluated at the Vertices of a Mesh. The followingexample illustrates how to evaluate a scalar Function at each Vertex of agiven Mesh:Function f;Mesh mesh;for (VertexIterator vertex(mesh); !vertex.end(); ++vertex)cout
DOLFIN User ManualHoffman, Jansson, Logg, WellsIf allowed by the underlying representation, a Function u may also be evaluateddirectly at any given Point:Point p(0.5, 0.5, 0.5);cout
Page 1 and 2: DOLFIN User ManualFebruary 24, 2006
Page 3 and 4: ContentsAbout this manual 91 Introd
Page 5 and 6: DOLFIN User ManualHoffman, Jansson,
Page 7: DOLFIN User ManualHoffman, Jansson,
Page 25 and 26: Chapter 3Linear algebra◮ Develope
Page 29 and 30: Chapter 4The mesh◮ Developer’s
Page 33: Chapter 5Functions◮ Developer’s
Page 43: Chapter 6Ordinary differential equa
Page 53 and 54: Chapter 8Nonlinear solver◮ Develo
Page 65 and 66: Chapter 10The log systemDOLFIN prov
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Bibliography[1] Cygwin, 2005. http:
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v 2 v 0 = (0, 0)DOLFIN User ManualH
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DOLFIN User ManualHoffman, Jansson,
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Appendix CContributing codeIf you h
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Appendix DLicenseDOLFIN is licensed
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DOLFIN User Manual - FEniCS Project

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