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User story: A quantity is given in meter on a Wikidata item. It shall be displayed in an infobox in feet. Random collection of thoughts on unit conversion: - Convert based on info provided by GnuUnits - Conversion works between units that have a common base unit (with an appropriate factor) - Conversion takes into account the precision interval to determine the significant number of digits. - Support linear conversions (factor and offset) - Need separate types for absolute vs. relative temperature - Historical units are not convertible - Currencies are units, but not convertible - No conversion of unit-less numbers. - Pseudo-units for "count", "factor", "coefficient", "ratio", etc?

User story: A quantity is given in meter on a Wikidata item. It shall be displayed in an infobox in feet. Open Questions - What and where does the user see conversions etc. ? - Will there be an api module? - Will there be preferences? - What is done with imperial/metric systems? Random collection of thoughts on unit conversion: - Convert based on info provided by GnuUnits - Conversion works between units that have a common base unit (with an appropriate factor) - Conversion takes into account the precision interval to determine the significant number of digits. - Support linear conversions (factor and offset) - Need separate types for absolute vs. relative temperature - Historical units are not convertible - Currencies are units, but not convertible - No conversion of unit-less numbers. - Pseudo-units for "count", "factor", "coefficient", "ratio", etc?

User story: A quantity is given in meter on a Wikidata item. It shall be displayed in an infobox in feet. Open Questions - What and where does the user see conversions etc. ? - Will there be an api module? - Will there be preferences? - What is done with imperial/metric systems? Random collection of thoughts on unit conversion: - Convert based on info provided by GnuUnits - Conversion works between units that have a common base unit (with an appropriate factor) - Conversion takes into account the precision interval to determine the significant number of digits. - Support linear conversions (factor and offset) - Need separate types for absolute vs. relative temperature - Historical units are not convertible - Currencies are units, but not convertible - No conversion of unit-less numbers. - Pseudo-units for "count", "factor", "coefficient", "ratio", etc?