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 units when > I've wanted to use them for something else. The best example is > the use of A for amps when I wanted to use A to represent an area.
Yeah, I've thought about that ... I think it would be possible in Maxima at least to prevent evaluation of units (so you could assign something to A and still have A appear as a symbol in units), but that would also prevent stuff like ev(12 ` goats + 5 ` sheep, goats = sheep/2), i.e. evaluate w/ some conversion indicated by binding goats to a value. Maybe that kind of assignment is less important than preventing unintended evaluation of units symbols. Undecided at this point. best Robert Dodier --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
