A hundred and one years ago, in 1913, the famous British mathematician G. H. Hardy received a letter out of the blue. The Indian (British colonial) stamps and curious handwriting caught his attention, ...

If you zoomed in on this picture, you could make out thousands of interconnected ellipses. Mathematical artist Hamid Naderi Yeganeh created them using a series of formulas that he devised and ...

Research shows smart study beats long study for math formulas. Retrieval practice and spaced repetition are key. Quizzing helps more than re-reading. Spacing out reviews improves retention. Mixing ...