# How to type a latex formula in editor Atom when using Julia?

**URL:** <https://discourse.julialang.org/t/how-to-type-a-latex-formula-in-editor-atom-when-using-julia/25358>\
**Category:** General Usage\
**Created:** [June 17, 2019, 8:10am UTC](https://discourse.julialang.org/t/how-to-type-a-latex-formula-in-editor-atom-when-using-julia/25358 "2019-06-17T08:10:38Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![bsnyh](https://avatars.discourse-cdn.com/v4/letter/b/ce7236/32.png) [@bsnyh](https://discourse.julialang.org/u/bsnyh)\
**Post date:** [June 17, 2019, 8:10am UTC](https://discourse.julialang.org/t/how-to-type-a-latex-formula-in-editor-atom-when-using-julia/25358/1 "2019-06-17T08:10:38Z")

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Hi, I have a quick question as the following. I was wondering, how to type a latex formula like e^2 in a .jl file when using Atom? Any suggestions?

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**Author:** ![pfitzseb](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/pfitzseb/32/45566_2.png) [@pfitzseb](https://discourse.julialang.org/u/pfitzseb)\
**Post date:** [June 17, 2019, 8:14am UTC](https://discourse.julialang.org/t/how-to-type-a-latex-formula-in-editor-atom-when-using-julia/25358/2 "2019-06-17T08:14:49Z")

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Use the [latex-completions](https://atom.io/packages/latex-completions) package (which should have been installed automatically if you followed the recommended installation instructions for Juno).

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**Author:** ![bsnyh](https://avatars.discourse-cdn.com/v4/letter/b/ce7236/32.png) [@bsnyh](https://discourse.julialang.org/u/bsnyh)\
**Post date:** [June 17, 2019, 8:19am UTC](https://discourse.julialang.org/t/how-to-type-a-latex-formula-in-editor-atom-when-using-julia/25358/3 "2019-06-17T08:19:02Z")

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could you be a bit more specific? because for now, when I type e^2 in the REPL or in the .jl file, it is e^2. but what I want is e^2.

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**Author:** ![pfitzseb](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/pfitzseb/32/45566_2.png) [@pfitzseb](https://discourse.julialang.org/u/pfitzseb)\
**Post date:** [June 17, 2019, 8:20am UTC](https://discourse.julialang.org/t/how-to-type-a-latex-formula-in-editor-atom-when-using-julia/25358/4 "2019-06-17T08:20:18Z")

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You can type `\euler<tab>\^2<tab>`, both in the REPL and in Atom.

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<div class="post-metadata">

**Author:** ![bsnyh](https://avatars.discourse-cdn.com/v4/letter/b/ce7236/32.png) [@bsnyh](https://discourse.julialang.org/u/bsnyh)\
**Post date:** [June 17, 2019, 8:23am UTC](https://discourse.julialang.org/t/how-to-type-a-latex-formula-in-editor-atom-when-using-julia/25358/5 "2019-06-17T08:23:14Z")

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Great. It works. One quick question though. Does \euler give the letter e ?

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<div class="post-metadata">

**Author:** ![pfitzseb](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/pfitzseb/32/45566_2.png) [@pfitzseb](https://discourse.julialang.org/u/pfitzseb)\
**Post date:** [June 17, 2019, 8:38am UTC](https://discourse.julialang.org/t/how-to-type-a-latex-formula-in-editor-atom-when-using-julia/25358/6 "2019-06-17T08:38:51Z")

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`\euler` gives the unicode char `U+212f`. You seem to have posted a regular cursive `e`.  
Do note that Julia knows what to do with `\euler` though:

```julia
julia> ℯ
ℯ = 2.7182818284590...

```

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<div class="post-metadata">

**Author:** ![bsnyh](https://avatars.discourse-cdn.com/v4/letter/b/ce7236/32.png) [@bsnyh](https://discourse.julialang.org/u/bsnyh)\
**Post date:** [June 17, 2019, 9:05am UTC](https://discourse.julialang.org/t/how-to-type-a-latex-formula-in-editor-atom-when-using-julia/25358/7 "2019-06-17T09:05:35Z")

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Great, great. I know what \euler is. Thank you a lot!