On Thu, Aug 13, 2009 at 1:55 PM, Peter Jeremy<peterjer...@optushome.com.au> wrote: > On 2009-Aug-11 15:29:29 -0700, William Stein <wst...@gmail.com> wrote: >>I just wanted to let people know that David Ackerman -- a UW student who >>took my course on Sage last quarter -- is working (funded by NSF) on >>creating a "units package" for Sage right _now_. > > Since no-one else has mentioned it, I presume you are aware that there > is a 'units' tool included with Unix that does most of this. It looks > like it's optional on Linux (at least boxen knows it exists but doesn't > have it installed). It's standard on FreeBSD (and the underlying > constants were worked through fairly recently to bring them into line > with the latest values). >
I "apt-get install" it so it is now on sage.math. Regarding interval arithmetic, the Sage symbolic manipulation package works with intervals, so it would be straightforward at any point in the future to have unit conversion ratios be intervals if one wanted that. I would find USD and EU conversion useful when I'm traveling. Then the conversion should be looked up somehow using urllib say when the program starts or every few minutes. William --~--~---------~--~----~------------~-------~--~----~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an 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 -~----------~----~----~----~------~----~------~--~---
