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Inspect a colour, compare approximate matches and build a gradient.

A natural-language calculator for units, dates, finance, and developer math.

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

AI video tutor for math and STEM questions.

A Markdown notebook that keeps notes in a Git-backed repository and works in the browser or desktop apps.

A tutoring whiteboard combining shared lessons, PDFs, formulas, quizzes, and flashcards.

Mathematical documents that combine solutions and visualization

Equations explored through graphs and symbolic methods

Tropical-weather analysis and model graphics

Modular WordPress SEO settings, structured data and content guidance.

A local Markdown editor for people who want rich text and source files in their own folders.

Convert documents between Markdown, HTML, LaTeX, Word, and other markup and word-processing formats.

AI-native Markdown notes with encrypted sync for developers

Symbolic, numerical and number-theory calculators

Dynamically generated maths worksheets covering arithmetic, algebra and other school topics.

Mathematical problem entry with a structured symbol palette

Mathematical solvers alongside lessons and formulas

A focused math solver with examples and reference links

Math input with worked examples across several subjects

AI math solver and tutor with step-by-step answers, PDF homework help, and study tools.

Mathematical problem solving with displayed working

Organize virtual sticky notes into shared boards for brainstorming, voting, and workshops.

Find economic time series by release, source or category

Transform Python array functions with just-in-time compilation, automatic differentiation, and vectorization.