Credits & Licenses
Acknowledgments and attributions
Platform Development
Built by 0xDarkArt
NumDojo was designed, engineered, and shipped by 0xDarkArt— independent full-stack and Web3 development, including production SaaS and smart contract audits. Case study: 0xDarkArt × NumDojo.
Mathematical Methods
Vedic Mathematics
Based on the system by Bharati Krishna Tirthaji, published in "Vedic Mathematics" (1965). These techniques are in the public domain.
Trachtenberg System
Developed by Jakow Trachtenberg. Published methods are in the public domain.
Soroban (Japanese Abacus)
Traditional Japanese abacus calculation methods, practiced for centuries.
Open Source
NumDojo is built with open source technologies including React, Next.js, Node.js, PostgreSQL, Tailwind CSS, Framer Motion, and many others. We are grateful to the open source community.
Icons & Assets
Icons by Lucide (ISC License). UI components adapted from shadcn/ui (MIT License).