Yasuhiro Matsumoto wrote:
> Hi list.
>
> round(n) should take digits to round up with second argument.
>
> round(5.127) -> 5.0
> round(5.127,-1) -> 10.0
> round(5.127,0) -> 5.0
> round(5.127,1) -> 5.1
> round(5.127,2) -> 5.13
> round(5.127,3) -> 5.127
>
> below is a patch to add second argument {digit} into round().
>
> https://gist.github.com/mattn/8591d5316b990fc4d7d5
I suppose it's useful sometimes. Although it can be done a multiply and
divide (which is how it's implemented).
The documentaiton doesn't explain what {digits} is for, there is only an
example.
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