[sage-devel] Re: units, was: Suggestion components to add onto SAGE

This is done very often in physics; without this feature I largely consider any units system useless. On Mon, Jul 21, 2008 at 7:06 PM, Carl Witty <[EMAIL PROTECTED]> wrote: > > On Jul 20, 1:52 pm, "William Stein" <[EMAIL PROTECTED]> wrote: >>(1) Are the list of all units one uses pretty stand

[sage-devel] Re: units, was: Suggestion components to add onto SAGE

Tim Lahey wrote: > I've used the Maple units package and it works fairly well for most > of the calculations I've done with it. It's an add-on package but is > still useful enough to handle most things I've thrown at it. The biggest > problem I've had is the appropriation of symbols for use in un

[sage-devel] Re: units, was: Suggestion components to add onto SAGE

On Jul 20, 1:52 pm, "William Stein" <[EMAIL PROTECTED]> wrote: >    (1) Are the list of all units one uses pretty standard? Is there > a table, say in Wikipedia, with pretty much all of them?  Or do > people make up new units in the course of their work or research? For just day-to-day unit conve

[sage-devel] Re: units, was: Suggestion components to add onto SAGE

William Stein wrote: > Since you've clearly been thinking of this from a developer's perspective, > and maybe even spending a lot of time writing code, is there any > chance you could just dump some of your design thoughts in an > email here? I'll try to come up with some coherent description &

[sage-devel] Re: units, was: Suggestion components to add onto SAGE

On Sun, Jul 20, 2008 at 11:14 PM, root <[EMAIL PROTECTED]> wrote: > >>I have looked around to see what Maple and Mathematica have in >>the way of units, but from what I have seen, there is nothing very >>exciting. Which is OK --- something boring which just works right >>would be very useful. > >

[sage-devel] Re: units, was: Suggestion components to add onto SAGE

>I have looked around to see what Maple and Mathematica have in >the way of units, but from what I have seen, there is nothing very >exciting. Which is OK --- something boring which just works right >would be very useful. Frink is the standard for unit conversion.

[sage-devel] Re: units, was: Suggestion components to add onto SAGE

On Jul 20, 2008, at 9:19 PM, Robert Dodier wrote: > > William Stein wrote: >> (3) Does Maxima, Maple, Mathematica, Matlab or Axiom do anything >> particularly cool, surprising or clever involving units? > > I have looked around to see what Maple and Mathematica have in > the way of units, but fr

[sage-devel] Re: units, was: Suggestion components to add onto SAGE

On Sun, Jul 20, 2008 at 8:36 PM, Robert Dodier <[EMAIL PROTECTED]> wrote: > > William Stein wrote: > >> The justification for ConvertAll would be exactly the justification for us to >> *not* use it in Sage, i.e., for Sage unit conversion we would surely want >> something that works well in the con