LaTeX realhats package—\hat{a} put real hats (dunce cap, Santa hat, top hat, cowboy hat, etc.) on symbols instead of â. https://ctan.org/pkg/realhats pic.twitter.com/eJabFM8dB6
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This is definitely a more important contribution to mathematics than Terence Taos latest joint paper; but, I'm sure he already know that.
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