On Fri, 7 Nov 2008 03:26:35 -0800 "Mike Hansen" <[EMAIL PROTECTED]> wrote:
> > On Fri, Nov 7, 2008 at 3:14 AM, Jason Grout > <[EMAIL PROTECTED]> wrote: > >> plot( f(x=5), (y, -10,10)) > >> > >> plot( f(x=5,y=y), (y, -10,10)) > >> > >> plot( f(5,None), (y, -10,10)) > >> > >> plot( f(5,y), (y, -10,10)) > >> > >> g(y) = f(5,y) > >> plot(g, (y, -10,10)) > >> That last one seemed too verbose > > > > > > I guess you could also do: > > > > plot( lambda y: f(5,y), (y, -10,10)) > > > > but then you give up things like fast_float. > > You didn't mention > > plot(f(5,y).function(y), (y, -10,10)) > > which is the one that'd be compatible with non-callable expressions. If symbolic expressions cease to be callable, plot would need to be changed to handle these cases: sage: plot( x^2 ) This seems plausible, since at the moment we allow sage: plot( sin ) for usability. Going back to your example, f(5,y) would just return a symbolic expression, so sage: f(x,y)=2*x+3*y sage: plot( f(5,y), (y, -10,10)) would be equivalent to sage: plot( 10+3*y, (y, -10,10)) which would just work. The current syntax allows this: sage: f(x,y) = a*x + b*y sage: f(5) b*y + 5*a sage: f(5)(5) b*y + 25 I think the last line should be a syntax error. Cheers, Burcin --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
