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A tip for specifying precision of displayed quantities. #460

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14 changes: 14 additions & 0 deletions docs/src/display.md
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Expand Up @@ -6,6 +6,20 @@ variable `UNITFUL_FANCY_EXPONENTS` to either `true` or `false` to force using or
the exponents. You can also set the `:fancy_exponent` IO context property to either `true`
or `false` to force using or not using the exponents.

## Specifying precision

If you need to set precision of displayed value of your unitful quantity, you can use the
`round` function as follows:

```julia
julia> d = 1.7438748921932u"mm"
1.7438748921932 mm

julia> round(typeof(d), d; sigdigits=3)
1.74 mm
```


```@docs
Unitful.BracketStyle
Unitful.abbr
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