General ⇒ Convert a/b to \frac{a}{b}

[diegocueva]

Hello:

Somebody knows a converter to translate normal math expression like 1+(1/pi) to LateX language 1+\frac {1} {$\pi$}

Thanks in advance.

[Johannes_B]

Hi and welcome,

to be honest, i don't know if there is a converter out there. But i know one thing for sure. Everything which is converted automatically to LaTeX needs careful checking and lots of fixing, as a converter cannot understand the equation.

Typing it directly will be more save and hence you will be faster.

[Stefan Kottwitz]

Hi Diego,

welcome to the forum!

There's pretty new TeX engine called ConTeXt. It provides a module with the name calcmath, which does what you want, directly within the code. It's implemented in Lua, so it should be possible to make it work with LuaLaTeX, because the ConTeXt syntax is very different.

Here is a compilable example:

Code: Select all

\usemodule[calcmath]
\startluacode
function moduledata.calcmath.tex(str,mode)
    context(moduledata.calcmath.totex(str,mode))
end
\stopluacode
\starttext
\displaycalcmath{1+(1/pi)}
\stoptext

This gives:

calcmath.png (5.42 KiB) Viewed 3580 times

Already

Code: Select all

\usemodule[calcmath]
\starttext
\displaycalcmath{1+(1/pi)}
\stoptext

would suffice, but the additional code above fixes a problem with scaling of the delimiting parentheses.

Stefan

[Johannes_B]

Oh, that looks interesting. I wonder how powerful it is. Seems like i have something to do this evening.

[Stefan Kottwitz]

Convert it to a package usable with LuaLaTeX. Or introduce it in a blog post on TeXwelt and here in English.

Stefan