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Refactor: Consolidate natural constants to remove duplication#1

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refactor-constants-consolidation-1654604911009498099
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Refactor: Consolidate natural constants to remove duplication#1
smjxpro wants to merge 1 commit into
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refactor-constants-consolidation-1654604911009498099

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@smjxpro

@smjxpro smjxpro commented Feb 14, 2026

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This PR improves code maintainability and readability by eliminating duplicate constant definitions.

🎯 What: The code health issue addressed was the redundant definition of natural constants in lib/src/equation_parser.dart.
💡 Why: Consolidating constants into a single source of truth in lib/src/core/constants.dart prevents inconsistencies and reduces code duplication.
Verification: Verified with dart analyze (no issues found) and thorough manual review of the constant mappings. The Constant class was safely updated to support Complex values.
Result: Improved consistency and a more maintainable codebase.


PR created automatically by Jules for task 1654604911009498099 started by @smjxpro

- Centralized all physical and mathematical constants in `lib/src/core/constants.dart`.
- Updated `Constant` class to support `dynamic` values, allowing `Complex` and `double.infinity`.
- Added missing constants `INF` and `GE` and aliases `EP`, `MU`, `SB` to the core constants registry.
- Refactored `EquationParser` to derive `naturalConstants` from the central registry.
- Simplified constant resolution logic in `getPrefilledValues` and `extractVariables`.
- Verified changes with `dart analyze` and manual code review.
- Maintained backward compatibility for `NaturalConstant` users.

Co-authored-by: smjxpro <9335473+smjxpro@users.noreply.github.com>
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