On Aug 29, 2008, at 4:53 AM, Tim Lahey wrote: > > On Aug 29, 2008, at 6:24 AM, William Stein wrote: > >> >> On Fri, Aug 29, 2008 at 2:46 AM, David Joyner <[EMAIL PROTECTED]> >> wrote: >>> >>> On Fri, Aug 29, 2008 at 3:07 AM, Burcin Erocal >>> <[EMAIL PROTECTED]> wrote: >>>> >>>> This is not supported in Sage at the moment, but it is definitely >>>> planned. It should be fairly simple to implement this using the new >>>> symbolic function interface from ginac, which allows one to specify >>>> custom simplify/automatic evaluation functions. >>>> >>>> I am not familiar with the maple syntax. Can you give some >>>> examples of >>>> how to use these features so I can play with them without having >>>> to dig >>>> through documentation? >>> >>> I agree this would be a very useful feature. Basically, something >>> like >>> >>> (1) >>> sage: integral(x,x,0,1) >>> 1/2 >>> sage: Integral(x,x,0,1) >>> \int_0^1 x\, dx >>> >>> (not the upper case I), or maybe >> >> I'm not enthuisiastic about using >> Foo and foo to denote different commands. If we have >> two cases of the exact same word in Sage, then they should >> be aliased. Isn't (2) below identical to (1) above? >> Or did you not mean to distinguish case above? >> > > It's what Maple does. In Maple, Int() is used to indicate an > inert integral, while int() is used to indicate an integral which > is evaluated at that time.
I like the concept, though I'm also -1 on the capital/lowercase syntax. Perhaps integral could take an extra argument, so one would have sage: integral(x,x,0,1) 1/2 sage: Integral(x,x,0,1, evaluate=False) \int_0^1 x\, dx Or maybe a new function formal_integral? - Robert --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@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-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
