Maurizio wrote: > Regarding the output of such expression you wrote, I agree that it > should give a standard unit output for each physical quantity, so by > presetting SI (or imperial, or anything else), it should give just > meters (or feets, or anything else)...
I'm pretty sure that would cause more trouble than it's worth. Whatever the standard, there could well be nonstandard combinations such as centimeters per day or liters per kilometer, which should be preserved as such. In the US, which is an important enough audience to be accomodated in the design of a units package, mixed-up units from different standards or no standards at all are very common, and should be preserved as such. And whatever the system or lack of it, it would be annoying to change fractional or multiple units (inches, kilometers, etc) to their base units (feet, meters, etc). The point is to accomodate the user, who has a better idea about what they want to accomplish than the package writer. FWIW Robert Dodier --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---