Mercurial > repos > public > sbplib_julia
comparison docs/src/manifolds_charts_atlases.md @ 1988:c4dc1bed0a81 feature/grids/manifolds
Minor docs change
author | Jonatan Werpers <jonatan@werpers.com> |
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date | Tue, 15 Apr 2025 08:35:51 +0200 |
parents | 3694f11075c5 |
children | d89f7a1a6f37 |
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1987:ebe883807b62 | 1988:c4dc1bed0a81 |
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1 # Manifolds, Charts, and Atlases | 1 # Manifolds, Charts, and Atlases |
2 | 2 |
3 To construct grids on more complicated geometries we use manifolds described | 3 To construct grids on more complicated geometries we use manifolds described |
4 by one or more charts. The charts describe a mapping from a logical parameter space | 4 by one or more charts. The charts describe a mapping from a logical parameter space |
5 to the geometry that we are interested in. If there are more than one chart | 5 to the geometry that we are interested in. If there are more than one chart |
6 for a given geometry this collection of charts and their connection is | 6 for a given geometry this collection of charts and how they are connected is |
7 described by an atlas. | 7 described by an atlas. |
8 | 8 |
9 For the construction of differential and difference operators on a manifold | 9 For the construction of differential and difference operators on a manifold |
10 with a chart the library needs to know the Jacobian of the mapping as a | 10 with a chart the library needs to know the Jacobian of the mapping as a |
11 function of coordinates in the logical parameter space. Internally, | 11 function of coordinates in the logical parameter space. Internally, |
30 | 30 |
31 ```julia | 31 ```julia |
32 using ForwardDiff | 32 using ForwardDiff |
33 Grids.jacobian(f,x) = ForwardDiff.jacobian(f,x) | 33 Grids.jacobian(f,x) = ForwardDiff.jacobian(f,x) |
34 ``` | 34 ``` |
35 | |
36 <!-- What more needs to be said here? --/> |