{"id":9921,"library":"mathruler","title":"MathRuler","description":"MathRuler is a powerful and versatile Python library, currently at version 0.1.0, designed to simplify and enhance mathematical calculations. It aims to provide tools for handling equations, units, and general computations, leveraging symbolic and numerical backends. As an early-stage library, its API is subject to iterative improvements with a rapid release cadence.","status":"active","version":"0.1.0","language":"en","source_language":"en","source_url":"https://github.com/Math-Ruler/mathruler","tags":["mathematics","symbolic-math","equations","calculations","science"],"install":[{"cmd":"pip install mathruler","lang":"bash","label":"Install MathRuler"}],"dependencies":[{"reason":"Required for symbolic computation and equation parsing.","package":"sympy","optional":false},{"reason":"Required for numerical operations and array handling.","package":"numpy","optional":false}],"imports":[{"symbol":"MathRuler","correct":"from mathruler import MathRuler"}],"quickstart":{"code":"from mathruler import MathRuler\n\n# Initialize the MathRuler\nruler = MathRuler()\n\n# Solve a simple algebraic equation\nresult_equation = ruler.equation(\"2x + 5 = 10\")\nprint(f\"Equation result: {result_equation.solve_for('x')}\")\n\n# Perform a calculation with units (if supported in future versions, currently basic)\n# Note: Unit support is an evolving feature and may require specific syntax.\n# For 0.1.0, focus on basic equations.\n# Example: Evaluate an expression\nresult_eval = ruler.evaluate(\"5 * (3 + 2)\")\nprint(f\"Evaluation result: {result_eval}\")\n\n# Define and use a variable\nruler.set_variable('y', 15)\nresult_var = ruler.evaluate(\"y / 3\")\nprint(f\"Variable calculation result: {result_var}\")","lang":"python","description":"Initializes a MathRuler instance and demonstrates solving a simple equation, evaluating an expression, and using variables. The `.equation()` method returns an equation object that can be further manipulated, for example, to solve for a specific variable. The `.evaluate()` method directly computes an expression."},"warnings":[{"fix":"Always consult the latest GitHub README and documentation for current API usage. Pin specific minor versions if stability is critical for your project, but be prepared for potential refactoring when upgrading.","message":"As a 0.x.x version, the API of MathRuler is not yet stable and is subject to significant changes, including method signatures, class names, and module structure, without adhering to strict semantic versioning.","severity":"breaking","affected_versions":"0.1.0 - current"},{"fix":"When encountering unexpected results, simplify your expressions or break them into smaller, more explicit parts. Refer to the documentation (or source code for 0.1.0) for supported syntax and operations. Avoid shorthand or implicit operations that might not be universally parsed.","message":"While MathRuler aims to handle equations, parsing complex or ambiguous mathematical expressions can be challenging. Input strings must often adhere to a specific syntax or standard for correct interpretation.","severity":"gotcha","affected_versions":"0.1.0 - current"},{"fix":"For applications requiring high precision, consider using MathRuler's symbolic capabilities where applicable, or explicitly implement decimal arithmetic. Be aware that comparisons of floating-point results should often involve a tolerance (epsilon) rather than direct equality checks.","message":"Mathematical calculations, especially with floating-point numbers, can introduce precision errors. MathRuler relies on underlying libraries like SymPy and NumPy, which also handle floats with standard IEEE 754 precision.","severity":"gotcha","affected_versions":"0.1.0 - current"}],"env_vars":null,"last_verified":"2026-04-17T00:00:00.000Z","next_check":"2026-07-16T00:00:00.000Z","problems":[{"fix":"Run `pip install mathruler` to install the library.","cause":"The 'mathruler' package has not been installed in your current Python environment.","error":"ModuleNotFoundError: No module named 'mathruler'"},{"fix":"Check the official documentation or the `mathruler` GitHub repository's README for the correct method names and their usage, especially when migrating between versions. For 0.1.0, the core methods are `equation`, `evaluate`, and `set_variable`.","cause":"You are attempting to call a method that either does not exist, is misspelled, or has been renamed/removed in the version of MathRuler you are using.","error":"AttributeError: 'MathRuler' object has no attribute 'xyz_method'"},{"fix":"Ensure your equation or expression string is well-formed, uses standard mathematical operators, and adheres to any specific syntax requirements outlined in MathRuler's documentation. Avoid ambiguity, ensure balanced parentheses, and correct any typos in variable names or operators.","cause":"The string passed to methods like `equation()` or `evaluate()` could not be parsed as a valid mathematical expression or equation by MathRuler's underlying parsers (e.g., SymPy).","error":"ValueError: Invalid equation or expression string provided."}]}