Re: problem with drawing triangle:(Unbound-variable)

[R. Mattes]

On Sat, 2006-01-07 at 14:17 -0500, Julian Graham wrote:
> It looks like you're trying to do some kind of graphics programming
> with Guile but don't have the right libraries loaded
> ("filled-triangle" is not, to the best of my knowledge, part of R5RS).
>  Perhaps you're missing a use-modules expression?
> 
> It would be helpful to know more about what you're trying to do here.

Oi veh, you'r right ;-)
"filled-triangle" is most likely the function exported by DrScheme's
fun-graph techpack. Somehow the OP's instructor failed to mention
that the exercises are DrScheme specific.

 HTH Ralf Mattes

> 
> On 1/7/06, Huazhong Wang <address@hidden> wrote:
> > Hi,
> >
> > I am learning guile and scheme. I want to draw a triangle, but the
> > machine always responsed me a warning. see below
> >
> > guile>(define test-bb    (filled-triangle 0 1 0 -1 1 -1))
> > standard input:10:4: In expession (filled-triangle 0 1 ...):
> > standard input:10:4: Unbound variable: filled-triangle
> > ABORT: (Unbound-variable)
> > guile>
> >
> > my system is debian.
> >
> > --
> > Huazhong Wang
> >
> > Graduate
> > Department of Electrical and Computer Engineering
> > FAMU-FSU College of Engineering
> > Florida State Univerity
> >
> > 2525 Pottsdamer Street
> > Tallahassee, FL 32310
> >
> > Email: address@hidden
> > Tel: (850) 410-6408 (office)
> >
> >
> >
> >
> >
> >
> >
> > ----------------------------------------------------------------
> >
> >
> >
> >
> > _______________________________________________
> > Guile-user mailing list
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> > http://lists.gnu.org/mailman/listinfo/guile-user
> >
> 
> 
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