this post was submitted on 18 Dec 2025
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And yet Maths textbooks do! 😂
In a Maths textbook
You don't know that the obelus means divide??
"No one" in this context meant "no one who actually does maths professionally."
Right, and I have decades of maths experience outside of textbooks. So it's probably been 20 years since I had a meaningful interaction with the × multiplication symbol.
I clearly know what the symbol means, I demonstrated a use of it. But again, haven't had a meaningful interaction with the symbol in 20 years, and yet I deal with
/for division daily.When I see
1+½i can instantly say "one and a half", but when I see1 + 1 ÷ 2i actually have to pause for a moment to think about order of operations. Same with1+2xvs1 + 2 × x... one I recognize the structure of the problem immediately, and one feels foreign.The point is that people who do maths for a living, and are probably above average in maths, tend to write things differently than people who are stopped their maths education in high school (or lower), and these types of memes are designed around making people who know high school maths feel smart. People who actually know maths don't need memes to justify being better at maths than the rest of the public.