Crate abaco 

Abaco

Math engine for Rust — expression evaluation, unit conversion, and numeric types.

Abaco provides three core capabilities:

• Expression evaluation — arithmetic, 28+ math functions, variables, scientific notation
• Unit conversion — 95+ built-in units across 14 categories
• Natural language parsing — “what is 15% of 230”, “convert 5 km to miles” (feature-gated)

Quick Start

use abaco::{Evaluator, UnitRegistry};

// Evaluate expressions
let eval = Evaluator::new();
let result = eval.eval("2 + 3 * 4").unwrap();
assert_eq!(result.to_string(), "14");

// Convert units
let registry = UnitRegistry::new();
let result = registry.convert(100.0, "celsius", "fahrenheit").unwrap();
assert!((result.to_value - 212.0).abs() < 0.1);

Feature Flags

• ai — enables natural language math parsing (adds reqwest, tokio)
• full — enables all optional features

Re-exports

pub use crate::core::ConversionResult;

pub use crate::core::Currency;

pub use crate::core::Unit;

pub use crate::core::UnitCategory;

pub use crate::core::Value;

pub use crate::eval::EvalError;

pub use crate::eval::Evaluator;

pub use crate::eval::Token;

pub use crate::eval::tokenize;

pub use crate::units::UnitError;

pub use crate::units::UnitRegistry;

Modules

core

eval

units