Quickstatements should not add decimal places to quantities without units

[Former user]

https://tools.wmflabs.org/quickstatements/ and https://tools.wmflabs.org/niosh/wikidata-todo/public_html/quick_statements.php both add many decimal places to quantities without unit and with some decimal places. (For instance 0.641 becomes 0.6410000000000000142108547152020037174224853515625)

[Christian Kleineidam]

I think this issue is important and prevents certain classes from data from being added with the tool. I would need this for example to add data about suicide rates.

[Navino Evans]

Adding a few points to the description for this issue:

1. For me this issue is exactly the same with or without a unit added (not only without unit as the title suggests)
2. This also effects the error given for a value - e.g. using 12~0.1 gives me 12±0.0999999999999996447286321199499070644378662109375

[fissl]

Why should QS change the number in the first place?

[wkentaur]

value 211.41 becomes 211,409999999999996589394868351519107818603515625 with QS