[docs] [issue29677] 'round()' accepts a negative integer for ndigits

[Mark Dickinson]

Mark Dickinson added the comment:

Yep, it's (genuinely) a feature, not a bug, and being able to round to the nearest ten, hundred, thousand, etc. is useful. The docs could perhaps be improved to make it clearer that this is supported.

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assignee:  -> docs at python
components: +Documentation
nosy: +docs at python, mark.dickinson

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