Some people might want to ask questions about the Japanese words for mathematical symbols.

Can we allow the MathJax plugin on the Japanese stack exchange?

¿What word do Japanese mathematicians use for $\color{teal}{\text{sets}}$? do they use for collections, number sets or number containers?

\{1, 2, 3, 4, 5\} \cap \{4, 5, 6, 7\} = \{4, 5\}

$\{1, 2, 3\} \cup \{3, 4, 5\} = \{1, 2, 3, 4 , 5\}$

American mathematicians use the word $\color{teal}{\text{set}}$

a screen capture taken from the math stack exchange

More than forty different stack exchange forums allow people to write MathJax.

Therefore, the code implementing MathJax is already available and ready to use on stack exchange.

Most people can write Japanese and English without Mathjax, but some of us will ask questions about mathematics.

  • 2
    Can you give an example that 'demonstrates a serious need for MathJax' on Japanese SE? As far as I can imagine, on-topic questions on JSE would be able to get around using it by some copy-pasting. (Using images would do for questions on symbols themselves.)
    – sundowner
    Commented Apr 22, 2023 at 13:56

1 Answer 1


It looks like the markdown for your set notation isn't working as intended as shown in the picture.

In principle, I'm in favour of being able to type math nicely on our site if the situation calls for it.

Practically, I'm afraid that the slashes or backslashes and curly braces may mess up our existing methods for furigana.

Furthermore, in the picture, the intersect (∩) symbol not appearing in the first example and the curly brace ({ }) not appearing in the second example does not inspire confidence in the markdown method.

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