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Math Symbol Frequencies

https://leancrew.com/all-this/2025/06/math-symbol-frequencies/
17•tosh•4h ago

Comments

VonTum•1h ago
I had a bit of a chuckle that apparently 5 out of 50000 opening "(" parentheses weren't closed, but then I saw that 2 out of 12000 "]" brackets weren't opened! What criminal is using these standalone?
rphln•1h ago
Mixing them should be relatively common when denoting intervals, as in "(a, b]" or "[a, b)", so that'd be one cause for being unbalanced. But even so, the math on their usage still doesn't add up.
gfaure•1h ago
There is the normal notation for half-open ranges, which would lead to unbalanced brackets.
orlp•30m ago
You won't like bra-ket notation then :)
layer8•1h ago
It seems weird that ∋ would be the sixth-most frequent symbol, while ∈ doesn't figure at all.
mkl•42m ago
Agreed. Even stranger to me is @ as the fourth most common operator, supposedly more common than +. The whole thing seems dubious.
layer8•24m ago
I would suspect that the @ comes from author email addresses. It's not entirely wrong to call that an operator. ;)

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