How to generate this "A" symbol commonly used in mathematics?

[Andrew]

For math mode, you should use typm, or better yet use a markup:

$cal(A)$

@reknih

If your question pertains to a bit of Typst markup you have problems with, put it in the question body! You can syntax-highlight Typst code by wrapping it in ` ```typ … ````. It will then look like this:

#set font(size: 12pt)

Hello from *Typst* at $ pi.var + 1 $ o'clock!

If you need to highlight a code or math mode snippet instead, the language tags typc and typm do that, respectively.

It would be great if you could post the smallest possible code samples that allow people to see what your problem is.

Also, Detypify only works on symbols, so calligraphical letters won’t work there.