# Power minus one character
**URL:** https://discourse.julialang.org/t/power-minus-one-character/101535
**Category:** General Usage
**Tags:** question, unicode
**Created:** [July 12, 2023, 2:17pm UTC](https://discourse.julialang.org/t/power-minus-one-character/101535 "2023-07-12T14:17:50Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@ufechner7](https://discourse.julialang.org/u/ufechner7)
#### Post date: [July 12, 2023, 2:17pm UTC](https://discourse.julialang.org/t/power-minus-one-character/101535/1 "2023-07-12T14:17:50Z")
Is their a way to print W^{-1} in the console using println(“W…”)?
Is their a unicode character for it?
---
### Author:  [@kellertuer](https://discourse.julialang.org/u/kellertuer)
#### Post date: [July 12, 2023, 2:23pm UTC](https://discourse.julialang.org/t/power-minus-one-character/101535/2 "2023-07-12T14:23:38Z")
In [Superscripts and Subscripts (Unicode block) - Wikipedia](https://en.wikipedia.org/wiki/Superscripts_and_Subscripts_(Unicode_block)) and [Unicode subscripts and superscripts - Wikipedia](https://en.wikipedia.org/wiki/Unicode_subscripts_and_superscripts) they mention a superscript minus and a superscript 1, so you could do W⁻¹, here it looks a bit nicer in code `W⁻¹`.
---
### Author:  [@ufechner7](https://discourse.julialang.org/u/ufechner7)
#### Post date: [July 12, 2023, 2:32pm UTC](https://discourse.julialang.org/t/power-minus-one-character/101535/3 "2023-07-12T14:32:17Z")
Thanks a lot! I copy and pasted what you wrote, and it works. 🙂
Is there a way to type this in the REPL without using copy and paste?
---
### Author:  [@kellertuer](https://discourse.julialang.org/u/kellertuer)
#### Post date: [July 12, 2023, 2:38pm UTC](https://discourse.julialang.org/t/power-minus-one-character/101535/4 "2023-07-12T14:38:03Z")
`W\highminus\^1` see [Unicode Input · The Julia Language](https://docs.julialang.org/en/v1/manual/unicode-input/)
---
### Author:  [@stevengj](https://discourse.julialang.org/u/stevengj)
#### Post date: [July 12, 2023, 2:44pm UTC](https://discourse.julialang.org/t/power-minus-one-character/101535/5 "2023-07-12T14:44:15Z")
> [@kellertuer](#):
>
> `W\highminus\^1`
Easier: `W\^-1`. If you copy-and-paste a symbol into the REPL help, it will tell you how to type it:
```julia-auto
help?> W⁻¹
"W⁻¹" can be typed by W\^-1
```
---
### Author:  [@Nathan\_Boyer](https://discourse.julialang.org/u/Nathan_Boyer)
#### Post date: [July 12, 2023, 2:50pm UTC](https://discourse.julialang.org/t/power-minus-one-character/101535/6 "2023-07-12T14:50:41Z")
If you need the output to be dynamic, you can use these functions I wrote a while ago.
```julia
julia> s = "W" * superscriptnumber(-1)
"W⁻¹"
julia> s = "W" * superscriptnumber(-3000)
"W⁻³⁰⁰⁰"
julia> ["W" * subscriptnumber(i) for i in 0:4]
5-element Vector{String}:
"W₀"
"W₁"
"W₂"
"W₃"
"W₄"
```
```julia
"""
subscriptnumber(i::Int) -> s::String
Returns the appropraite unicode string `s` for any numerical subscript `i`.
"""
function subscriptnumber(i::Int)
if i < 0
c = [Char(0x208B)]
else
c = []
end
for d in reverse(digits(abs(i)))
push!(c, Char(0x2080+d))
end
return join(c)
end
export subscriptnumber
"""
superscriptnumber(i::Int) -> s::String
Returns the appropraite unicode string `s` for any numerical superscript `i`.
"""
function superscriptnumber(i::Int)
if i < 0
c = [Char(0x207B)]
else
c = []
end
for d in reverse(digits(abs(i)))
if d == 0 push!(c, Char(0x2070)) end
if d == 1 push!(c, Char(0x00B9)) end
if d == 2 push!(c, Char(0x00B2)) end
if d == 3 push!(c, Char(0x00B3)) end
if d > 3 push!(c, Char(0x2070+d)) end
end
return join(c)
end
export superscriptnumber
```