Modular components to encapsulate data and markup in Prawn

It includes maths, datetime, and rspec access test libraries.

Tools for manipulating colors in various color spaces

Trees, Heaps, Timers, Error fitting, etc

A Ruby object-oriented search library for directed and undirected graphs based loosely on Dijkstra's algorithm

Daru (Data Analysis in RUby) is a library for analysis, manipulation and visualization of data. Daru works seamlessly accross interpreters and leverages interpreter-specific optimizations whenever they are available. It is the default data storage gem for all the statsample gems (glm, timeseries, etc.) and can be used with many others like mixed_models, gnuplotrb and iruby. Daru Lite is a fork of Daru that aims to focus on data manipulation and stability.

Package of validations commonly used in Defra Rails based digital services

A collection of Stern-Brocot based models and methods

Generating grids of shapes based on twisty puzzles

Labrat is a linux command-line program for quickly printing labels. Labrat uses the wonderful Prawn gem to generate PDF files with label formatting in mind. With labrat properly configured, printing a label is as simple as: $ labrat 'Income Taxes 2021 ~~ Example Maker, Inc.' And you will get a two-line file-folder label with the text centered. It can print on dymo label printer rolls or Avery sheet labels. It knows the layout of most Avery label types. For Emacs users, labrat includes elisp code for invoking labrat from within a buffer, providing a quick way to print labels.

An adapter for various NLU web services like Aws Lex, Google Dialogflow etc.

Prawn::DisableWordBreak is an extension for Prawn that disables word-breaking by character such as space and hyphen.

Generate sets of labels or stickers programmatically using Prawn PDF.

Provides a numeric class Quaternion which is similar to a built-in class Complex.

Quby is a Rails engine that can render and update answers for questionnaires defined in a custom DSL.

This should probably never be used for anything but learning.

The library for mathematical optimization in Ruby is designed to help solve many problems in the computational, financial, social, and energy fields and, in theory, should include components of game theory, combinatorics, probability theory, linear and nonlinear optimization, cluster, regression, and other analysis.

A Ruby game engine using OpenGL and GLFW

Temporary files, logs, path, resources, persistence, workflows, TSV, etc.

structuraid_core is a gem that offers a set of functionalities to assist in the design building structures.