Fixed #

• Updated Dependencies.
• Fixed lint issues.

Added #

• SystemSolver: New powerful solver for systems of non-linear equations using Newton-Raphson method.
• Complex Number Support: Full support for complex numbers in SystemSolver and Evaluator.
• N-Variable Support: Solvers now support arbitrary numbers of variables (e.g., x, y, z).

Changed #

• BREAKING: Strictly enforced explicit multiplication in the grammar. 2x is no longer valid; use 2*x.
• Documentation: Comprehensive updates to README and API documentation.

Fixed #

• Updated Documentation.

Fixed #

• Corrected documentation links in pubspec.yaml to point to the proper repository and README file.

Added #

• Introduced SystemSolver for solving systems of equations, enhancing the solver capabilities of the library.

Changed #

• BREAKING: Removed all implicit multiplication support. The parser now requires explicit operators (e.g., m*a instead of ma).
• BREAKING: Strict constant lookup. Constants must be referenced by their explicit keys (e.g., SOL, GC, SG) to be automatically prefilled. Ambiguous symbols like c, g, h are now treated strictly as variables.
• Refactored PhysicsConstant to NaturalConstant to better reflect the domain-agnostic nature of the constants.
• Removed "repair phase" and implicit cleaning logic from variable extraction to ensure 100% predictable parsing.

Fixed #

• Fixed issue where variable aliases (e.g., g vs SG) caused duplicate rows in the solver UI.
• Fixed getPrefilledValues heuristics to be deterministic and strict.

Added #

• Enhanced Greek Letter Support: Improved parsing of LaTeX Greek commands (e.g., \alpha, \Phi_0, \Delta E)
• Automatic Physics Constants: Solver now automatically identifies and substitutes physics constants mentioned by their symbols or keys
• Subscript Support: Improved handling of variable subscripts in both plain text (x_1) and LaTeX (x_{1})

Changed #

• Improved numerical solver's accuracy for high-sensitivity physics equations (like Rydberg formula)
• Unified math symbol rendering (π, ∞, etc.) to use standard LaTeX commands consistently
• Refined variable extraction to correctly exclude math and physics constants from "unknowns"

Fixed #

• Resolved NaN results in complex arithmetic involving the imaginary unit i
• Improved convergence of Newton's method with expanded search ranges and better starting points

Added #

• ExpressionParser - New clean API for parsing expressions and extracting variables
• Evaluator - New class for expression evaluation with variable substitution
• Solver - New equation solver with algebraic and numerical methods
• Cas - Computer Algebra System for differentiation and integration
• ExpressionGrammar - PetitParser grammar for explicit algebraic notation
• Comprehensive documentation and examples

Changed #

• BREAKING: Complete API reorganization with cleaner, more intuitive classes
• Moved to explicit operator notation (e.g., 2*x instead of 2x)
• Improved error handling with descriptive error messages

Deprecated #

• MathEquationParser - Use ExpressionParser + Evaluator instead
• AlgebraicEquationParser - Use Solver instead
• CasParser - Use Cas instead

Fixed #

• Single-letter variables no longer incorrectly match physics constants
• Better handling of mathematical constants (pi, e, infinity)