MathEvaluator most commonly refers to a highly popular, open-source .NET library developed by Anton Antonov that allows developers to parse, evaluate, and compile mathematical expressions from strings dynamically at runtime.
Because “math evaluator” is also a generic computer science term, several lighter open-source libraries in C++, Java, and Lua share this name, alongside text-editor extensions like the Sublime Text Math Evaluator. However, the .NET package stands out as a full-featured, enterprise-grade tool. Core Features of the .NET Library
The .NET MathEvaluator Repository provides a suite of advanced mathematical capabilities:
Dynamic Evaluation: Solves raw math strings seamlessly (e.g., “2(3 + 5)” outputs 16).
Multi-Context Support: Switches between scientific math notation, programming conventions, and custom settings.
Broad Type Support: Handles Boolean logic, double precision, decimals, and complex numbers.
Modern .NET Optimization: Native support for INumberBase across newer frameworks (.NET 7 through .NET 10).
Dynamic Variable Binding: Allows developers to pass changing parameters using dictionaries or ExpandoObject frameworks.
Alternative Number Systems: Seamlessly parses non-decimal bases, including Binary (0b), Octal (0o), and Hexadecimal (0x) strings. High Performance & Architecture
Unlike standard parsing scripts, MathEvaluator is engineered for extreme speed:
Zero Regular Expressions: Avoids heavy Regex engines to keep CPU usage low.
Memory Efficiency: Heavily uses ReadOnlySpan to minimize heap allocations during string processing.
Prefix Trees (Tries): Uses optimized Tries to locate variables, custom operators, and function keys instantly.
Fast Compilation: Via an optional extension (MathEvaluator.FastExpressionCompiler), it can compile raw math strings into executable .NET delegates up to 10x–40x faster than native Lambda expressions. Alternative Packages by Language
If you are working outside the Microsoft ecosystem, you are likely looking at one of these alternatives: MathEvaluator 3.0.2 – NuGet
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