feat: add Symbolics extension #42
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This commit implements Symbolics.jl support for DataInterpolationsND.jl to enable ModelingToolkit (MTK) compatibility as requested in issue SciML#6. Changes: - Add DataInterpolationsNDSymbolicsExt extension in ext/ directory - Register NDInterpolation objects as symbolic functions - Implement symbolic differentiation for partial derivatives - Add comprehensive test suite for symbolic functionality - Configure Project.toml with proper extension setup The extension supports: - Symbolic evaluation: itp(x, y) with symbolic variables - Partial differentiation: ∂f/∂x, ∂f/∂y via Symbolics.derivative - Higher-order and mixed partial derivatives - Value substitution and numerical comparison Testing shows the extension works correctly: - Symbolic expressions are created properly - Derivatives match ForwardDiff results - Substitution produces correct numerical values Resolves SciML#6 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
Remove try/catch block and simplify test structure. The tests now directly use Symbolics without error handling since the extension will only load when Symbolics is available. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
Symbolics is now included in [extras] and [targets] test so that the Symbolics extension tests can run properly without try/catch. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
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ChrisRackauckas
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Oct 28, 2025
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Thanks for completing this work. Is there much effort needed to support #33? |
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This extension doesn't particularly care about the details of interpolation, it simply needs some type information from the interpolation object. That PR changes the type parameters, so the extension would need to be updated accordingly. |
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Supersedes #30