I guess not, how would that even work?... I guess if you like the LaTeX version, in TeX you could write new commands that evaluate the expression instead of/as

I guess not, how would that even work?... I guess if you like the LaTeX version, in TeX you could write new commands that evaluate the expression instead of/as well as displaying it. I don't know APL, but it seems the most condensed language for doing mathematical stuff. In APL (I looked it up) you'd write "!6". Try/learn APL online here https://tryapl.org/ https://tryapl.org/ In Julia you can use Unicode characters as variable names, write e.g. "2π" instead of "2*PI", and it's easy to "operator overload", so that e.g. "+" adds/combines together 2 or more of whatever things you want to add/combine, whatever they are, in whatever way you like. Or add new operators. Thus lines of code in Julia can get a lot closer to looking like mathsy/sciency expressions than in most languages.