Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
– William Thurston
This idea is at the heart of everything we make: we want you to learn math as effectively as possible by building real intuition.
To do that even better, we’d love to ask you a few things — this will just take 1 or 2 minutes of your time, and your opinion is really important.
To learn mathematics more effectively, take a look at our catalogue of PDFs, which are designed to start with intuition, and then solidify it with rigor, along with exercises with detailed solutions.
Or take a look at some of our most useful PDFs
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