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Engineering worksheets that mix formulas and explanation

A notepad calculator with variables and calendar expressions

Natural-language calculation beside short notes

Molecular-biology quantities with visible formulas

Count text and set writing goals

A network detection, prevention and monitoring engine

Compare, count and clean text in one suite

Arithmetic, finance and practical calculation worksheets

Formula calculators with selectable input units

Scientific and everyday calculations with units

Desktop unit conversion with custom conversion definitions

Metric and imperial conversion with reference charts

An audio-programming system for instruments and effects

Financial management across ledgers, billing and group reports

Unit conversion organized by physical and everyday categories

AP exam prep with study guides, flashcards, quizzes and mock exams.

Online mastering service with an AI-powered engine.

AI market research reports for any product or business.

Provision and operate managed PostgreSQL clusters across AWS, Azure, or Google Cloud.

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

Inspect and edit relational and other databases from a native desktop client.

Provision managed SQLite-compatible databases for apps that need isolated data stores and cloud synchronization.

Run analytical SQL in an embedded database from a local process or Python program.

Run a self-managed time-series database for recent metrics and event data.