# Dotdot: The double-broadcast operator enabling Float32..(a)

**URL:** https://discourse.julialang.org/t/dotdot-the-double-broadcast-operator-enabling-float32-a/136260
**Category:** Internals & Design
**Created:** [March 18, 2026, 4:54pm UTC](https://discourse.julialang.org/t/dotdot-the-double-broadcast-operator-enabling-float32-a/136260 "2026-03-18T16:54:56Z")
**Posts on this page:** 1
**Showing post:** 19

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### Author: ![rokke](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/rokke/32/222691_2.png) [@rokke](https://discourse.julialang.org/u/rokke)
#### Post date: [March 21, 2026, 2:10pm UTC](https://discourse.julialang.org/t/dotdot-the-double-broadcast-operator-enabling-float32-a/136260/19 "2026-03-21T14:10:10Z")

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if you want a function, I just grepped the julia codebase and found this in REPL:

```julia-auto
julia> REPL.repl_latex(stdout, "̂")
"̂" can be typed by \hat<tab>

```

interesting, I didn’t know we had emoji latex strings…  
if we’re supporting emoji then adding a shortcut for the zero width joiner seems like a good move, `\zwj` doesn’t seem to be taken yet

opened a pr to add `\zwj`: [adds zero-width-joiner input method by rokke-git · Pull Request #61391 · JuliaLang/julia · GitHub](https://github.com/JuliaLang/julia/pull/61391)

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