Thirty essential equations — calculus, algebra, statistics, discrete math, physics, information, and finance — each with a plain-English explanation. Browse, filter, search, or run the ambient loop.
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Thirty equations across eight areas — algebra, geometry, calculus, statistics, discrete math, physics, information theory and finance. Each card says what the equation means in plain English and names its symbols instead of assuming them.
It is free, with no account and no sign-up. The page is static and the search runs in your browser, so nothing you type is sent anywhere.
Type a name or keyword into the search box, or pick a category chip to narrow the list. The present loop steps through the cards one at a time when you want to read or teach from them.