Add ArrayDiscretization strategy for vectorized interior equations#531

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ctessum-claude:array-discretization-phase1

Commits on Feb 27, 2026

Remove collect from discretize_dep_vars to preserve Symbolics.Arr

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Add ArrayDiscretization strategy for faster interior equation generation

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Rewrite ArrayDiscretization interior eqs to use ArrayOp symbolic index template

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Delegate _per_point_eqs to scalar path for full scheme support

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Extend ArrayOp template from 1D to N-D for multi-dimensional centered differences

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Use genuine ArrayOp expressions instead of per-point instantiation

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Extend ArrayOp template to handle upwind and mixed derivative schemes

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Commits on Mar 6, 2026

Simplify and clean up ArrayDiscretization code

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Commits on Mar 26, 2026

Fix ArrayOp fallback for equations without spatial derivatives

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Commits on Mar 27, 2026

Fix ArrayOp for non-advective first-order derivatives (gradient magnitude)

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Commits on Mar 31, 2026