[Tagging] incline default unit ?

Alberto albertoferraris at fastwebnet.it
Mon Aug 12 20:21:53 UTC 2013

The percent sign % or degree sign ° should always be specified in OSM,
otherwise the risk of ambiguities is too high.
Anyway, on scientific side, if you express a ratio in percentage you must
always postpone the % sign. Ratio is a pure number, true, but if you don't
use the % notation, 10% must be written 0.10, 15% becomes 0.15 and 100%
becomes 1.00.
If you write 10 without % it does not mean a ratio of 10% but 1000%.

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