# Math notation
**URL:** https://discourse.julialang.org/t/math-notation/130567
**Category:** General Usage
**Tags:** question
**Created:** [July 9, 2025, 7:01am UTC](https://discourse.julialang.org/t/math-notation/130567 "2025-07-09T07:01:31Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@Lincoln\_Hannah](https://discourse.julialang.org/u/Lincoln_Hannah)
#### Post date: [July 9, 2025, 7:01am UTC](https://discourse.julialang.org/t/math-notation/130567/1 "2025-07-09T07:01:31Z")
Could a set of uni-code characters (e.g. Greek letters) be set to be interpreted as individual variables even if they are next to other characters.
```julia
α=2
δ=3
αδ #6 like 2δ gives 6 in Julia
```
Would allow Julia code to look a bit more like math notation.
(though may also be confusing)
---
### Author:  [@kellertuer](https://discourse.julialang.org/u/kellertuer)
#### Post date: [July 9, 2025, 7:11am UTC](https://discourse.julialang.org/t/math-notation/130567/2 "2025-07-09T07:11:50Z")
This would not be unique, since it is unclear whether you meant to write `α*δ` which would be defined in you case or the single variable `αδ`, which would error in you case.
Your proposal would require that variable names that start with greek letters are not allowed to be longer than a single letter, so that would be very limiting (and super breaking to change that now).
I often see `Δt` which would be forbidden to be used then.
Also – why only limit this to greek letters? Or in other words: also `a`, `C`, … are uni-code characters. Who would decide which ones are fine to be allowed only single letters?
---
### Author:  [@GunnarFarneback](https://discourse.julialang.org/u/GunnarFarneback)
#### Post date: [July 9, 2025, 7:52am UTC](https://discourse.julialang.org/t/math-notation/130567/3 "2025-07-09T07:52:36Z")
You could do that within a macro.
---
### Author:  [@rafael.guerra](https://discourse.julialang.org/u/rafael.guerra)
#### Post date: [July 9, 2025, 8:25am UTC](https://discourse.julialang.org/t/math-notation/130567/4 "2025-07-09T08:25:57Z")
> [@Lincoln\_Hannah](#):
>
> `αδ`
Perhaps nicer (for real numbers) than `α*δ` :
```julia
julia> α'δ
6
```
---
### Author:  [@baggepinnen](https://discourse.julialang.org/u/baggepinnen)
#### Post date: [July 9, 2025, 8:32am UTC](https://discourse.julialang.org/t/math-notation/130567/5 "2025-07-09T08:32:23Z")
> [@Lincoln\_Hannah](#):
>
> Could a set of uni-code characters (e.g. Greek letters)
Regular non-greek characters, like `a`, are also unicode characters
```julia
julia> 'a'
'a': ASCII/Unicode U+0061 (category Ll: Letter, lowercase)
```