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annotate docs/src/grids_and_grid_functions.md @ 1341:5761f4060f2b refactor/grids

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Start adding general info about grids to docs
author Jonatan Werpers <jonatan@werpers.com>
date Mon, 08 May 2023 17:37:24 +0200
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1 # Grids and grid functions
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3 The submodule `Grids` aims to provide types and logic for all types of grids that are useful for implementing summation-by-parts difference methods. It provides an abstract top level type `Grid` which defines a broad interface for how a general grid is supposed to work. Currently only equidistant grids are supported, but the basic structure supports implementations of curvilinear grids, multi-block grids, peridic grids and much more.
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5 The module also has functionality for creating and working with grid functions.
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7 ## Interface for grids
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8 All grids are expected to work as a grid function for the coordinate function, and thus implements Julia's Indexing- and Iteration-interfaces. Notably they are *not* abstract arrays because that inteface is too restrictive for the types of grids we wish to implement.
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10 ## To write about
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11 <!-- # TODO: -->
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12 * Grid functions
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13 * Basic structure
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14 * Indexing
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15 * Curvilinear
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16 * Multiblock
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17 * Vector valued grid functions