# Hover over Latex/ Unicode Character to see the Latex Sourcecode

**URL:** https://discourse.julialang.org/t/hover-over-latex-unicode-character-to-see-the-latex-sourcecode/31749
**Category:** Juno
**Created:** [December 2, 2019, 1:06pm UTC](https://discourse.julialang.org/t/hover-over-latex-unicode-character-to-see-the-latex-sourcecode/31749 "2019-12-02T13:06:26Z")
**Posts on this page:** 6
**Page:** 1

<div class="post-metadata">

### Author: ![Impressium](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/impressium/32/19575_2.png) [@Impressium](https://discourse.julialang.org/u/Impressium)
#### Post date: [December 2, 2019, 1:06pm UTC](https://discourse.julialang.org/t/hover-over-latex-unicode-character-to-see-the-latex-sourcecode/31749/1 "2019-12-02T13:06:26Z")

</div>

Hey 🙂

I really like the unicode support in Julia. But sometime it’s hard to differentiate different latex character. Wouldn’t it be nice if there were a way to look them up and maybe get the latex source code (\alpha for α)

---

<div class="post-metadata">

### Author: ![chakravala](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/chakravala/32/6832_2.png) [@chakravala](https://discourse.julialang.org/u/chakravala)
#### Post date: [December 2, 2019, 1:27pm UTC](https://discourse.julialang.org/t/hover-over-latex-unicode-character-to-see-the-latex-sourcecode/31749/2 "2019-12-02T13:27:13Z")

</div>

```nohighlight
help?> α
"α" can be typed by \alpha<tab>

```

---

<div class="post-metadata">

### Author: ![Impressium](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/impressium/32/19575_2.png) [@Impressium](https://discourse.julialang.org/u/Impressium)
#### Post date: [December 2, 2019, 1:50pm UTC](https://discourse.julialang.org/t/hover-over-latex-unicode-character-to-see-the-latex-sourcecode/31749/3 "2019-12-02T13:50:02Z")

</div>

Oh thanks. That’s great!

```julia
help?> 👍
search:

Couldn't find 👍
Perhaps you meant ❌, 👍, !, %, &, *, +, -, /, :, <, >, \, ^, |, ~, ÷, π, ℯ, ∈, ∉, ∋, ∌, ∘, √, ∛, ∩, ∪, ≈, ≉, ≠, ≡, ≢, ≤, ≥, ⊆, ⊇, ⊈, ⊉, ⊊, ⊋, ⊻, !=, //, <:, <<, <=, ==, =>, >:, >=, >>, GC, cd, cp, fd, im, in, mv, pi, rm, |> or IO
  No documentation found.

  Binding 👍 does not exist.

julia> 

```

---

<div class="post-metadata">

### Author: ![jmert](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/jmert/32/3161_2.png) [@jmert](https://discourse.julialang.org/u/jmert)
#### Post date: [December 2, 2019, 4:59pm UTC](https://discourse.julialang.org/t/hover-over-latex-unicode-character-to-see-the-latex-sourcecode/31749/4 "2019-12-02T16:59:19Z")

</div>

You can also get more info by just quoting a single character in single quotes:

```julia
julia> '👍'
'👍': Unicode U+01f44d (category So: Symbol, other)

julia> '\U01f44d'
'👍': Unicode U+01f44d (category So: Symbol, other)

```

which will work for characters that don’t have a LaTeX shortcut built in to the REPL.

---

<div class="post-metadata">

### Author: ![Syx\_Pek](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/syx_pek/32/6364_2.png) [@Syx\_Pek](https://discourse.julialang.org/u/Syx_Pek)
#### Post date: [December 2, 2019, 6:26pm UTC](https://discourse.julialang.org/t/hover-over-latex-unicode-character-to-see-the-latex-sourcecode/31749/5 "2019-12-02T18:26:50Z")

</div>

But `\:+1:` gives 👍

I don’t know any easy way of finding out except [Unicode Input · The Julia Language](https://docs.julialang.org/en/v1/manual/unicode-input/)

---

<div class="post-metadata">

### Author: ![stevengj](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/stevengj/32/71_2.png) [@stevengj](https://discourse.julialang.org/u/stevengj)
#### Post date: [December 2, 2019, 7:47pm UTC](https://discourse.julialang.org/t/hover-over-latex-unicode-character-to-see-the-latex-sourcecode/31749/6 "2019-12-02T19:47:27Z")

</div>

> [@Syx\_Pek](#):
>
> But `\:+1:` gives 👍

This seems to be a bug in the help … typing `?👍` should show this (or any other) tab-completion shortcut. The required patch seems to be trivial if anyone wants to put together a PR:

> <https://github.com/JuliaLang/julia/issues/34006>
>
> As reported \[on discourse\](https://discourse.julialang.org/t/hover-over-latex-un…icode-character-to-see-the-latex-sourcecode/31749/3?u=stevengj), the REPL help doesn't show tab completion info for emoji even when it exists, unlike for other Unicode completions:
> \`\`\`jl
> help?\> α
> "α" can be typed by \\alpha\<tab\>
> search:
> 
> Couldn't find α
> Perhaps you meant !, %, &, \*, +, -, /, :, \<, \>, \\, ^, |, ~, ÷, π, ℯ, ∈, ∉ or ∋
> No documentation found.
> 
> Binding α does not exist.
> 
> help?\> 👍
> search:
> 
> Couldn't find 👍
> Perhaps you meant !, %, &, \*, +, -, /, :, \<, \>, \\, ^, |, ~, ÷, π, ℯ, ∈, ∉ or ∋
> No documentation found.
> 
> Binding 👍 does not exist.
> \`\`\`
> even though \`👍\` is produced by tab completion of \`\\:+1:\`
