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A common language for computational mathematics

Convert HTML and CSS into PDF without a browser engine

An engineering programming environment for developing algorithms, analyzing data, and visualizing results.

A deterministic layer that lets agents make code changes across an entire code estate.

Coding bites with starter code, tests and discussion

Inspect the product, model and market inputs behind a valuation

Host coded or visual strategies through shared broker connections

An interactive introduction to Python

Beginner programming books available to read online

Study an exploratory Python engine for historical equities tests

Run DuckDB-based analytics in a managed cloud warehouse and share results with a team.

Python and TypeScript practice through coding missions

Deploy serverless JavaScript, TypeScript, Python, or Rust code to Cloudflare's edge network.

Render technical Markdown and notebooks into reports, books, slides, and websites.

Trace and investigate AI application calls with a local or self-hosted observability interface.

A desktop UI-test IDE that records, replays and reports tests against mobile apps, desktop programs and games.

AI spreadsheet that connects to databases and apps, answers questions in plain English, and builds charts and models.

Pixel-aligned map symbols designed for a 14 px drawing area.

Edit plain-text and source files on macOS with syntax highlighting, encoding tools, scripting, and regex search.

Inspect, repair and convert triangular meshes

A Python command-line toolkit for authoring and running declarative chaos experiments against configured systems.

Model financial instruments with an inspectable quantitative library

Choose scientific colour maps to match the structure of your data.

Connect, transform and store business data before sharing dashboards and reports.