Using Ruby as a scientific computing language

Fast HTML escape utility

Struct with the convenience of instantiating from a Hash

IdempotentEnumerable is like Enumerable, but tries to preserve original collection type when possible.

A faster, immutable replacement for Ruby's Set

A library that computes the hazard of cosmetic products components, based on the Biodizionario data.

Wrappers to make instrumentation of methods easy and pleasant to read

IrtRuby is a comprehensive Ruby library for Item Response Theory (IRT) analysis, commonly used in educational assessment, psychological testing, and survey research. Features three core IRT models: • Rasch Model (1PL) - Simple difficulty-only model • Two-Parameter Model (2PL) - Adds item discrimination • Three-Parameter Model (3PL) - Includes guessing parameter Key capabilities: • Robust gradient ascent optimization with adaptive learning rates • Flexible missing data strategies (ignore, treat as incorrect/correct) • Comprehensive performance benchmarking suite • Memory-efficient implementation with excellent scaling • Production-ready with extensive test coverage Perfect for researchers, data scientists, and developers working with educational assessments, psychological measurements, or any binary response data where item and person parameters need to be estimated simultaneously.

Ishin converts objects into their Hash representations.

Type assertion library for method arguments

JSON escape

A calculator that can safely and quickly interpret user-input

Check number whether kiriban

JSON Driven, Stateless Rules Engine for JIT and efficient evaluation of complex rules and computation graphs.

Provides thread-safe lazy initialization with clean, Ruby-idiomatic API. Eliminates race conditions in lazy attribute initialization while maintaining performance.

It's lenjadoric

Use String#levenshtein(other_str) to get the levenshtein distance between 2 strings. Useful for measuring approximate string similarity, and fuzzy matching.

Ruby bindings for libdeflate.

It's logasmic

It's logasmic