4Geometry is a search engine built for people who work with geometric ideas. Whether you need a textbook chapter, a clear proof, a visualization tool, or a specific geometry software package, our search combines multiple indexes and AI systems to deliver focused results. The site also includes tutorials, calculators, and a chat assistant that can explain steps, suggest diagrams, and help check proofs. Part of the 4SEARCH network of topic specific search engines.
Why two parcels that share a border drift apart in most map editors, and how a planar partition keeps them together. With runnable TypeScript. Disclosure: I make vectorstream, the library in this post. I wanted to edit land parcels on a web map. In the tools I tried, I moved…