Or, to put it another way, your language settings need to be different for the "Quick" tutorial than for "Picturing Programs."
On Sat, Jun 8, 2013 at 11:07 PM, Jon Zeppieri <zeppi...@gmail.com> wrote: > Ah, sorry. If you've already set up DrRacket to use the student > languages, you need to undo that to do the "Quick" tutorial." > > You'll need to go back to the Language -> Choose Language... menu and > select the Racket language. > > On Sat, Jun 8, 2013 at 11:04 PM, Jon Zeppieri <zeppi...@gmail.com> wrote: >> That's what DrRacket responds with if you put a #lang line in the >> interactions (lower) window. You need to put it in the definitions >> (upper) window. >> >> On Sat, Jun 8, 2013 at 10:58 PM, Steve Lett <steve.lett...@gmail.com> wrote: >>> Thanks. I just did that and there's another error message. It reads "read: >>> #lang not enabled in the current context" >>> >>> On Jun 9, 2013 12:35 PM, "Jon Zeppieri" <zeppi...@gmail.com> wrote: >>>> >>>> Did you follow the instructions in the part labeled "2 Set..."? You >>>> need to put "#lang slideshow" at the top of your definitions window >>>> (replacing any #lang line that might already be there), and you need >>>> to press "Run" after doing that. >>>> >>>> On Sat, Jun 8, 2013 at 10:26 PM, Steve Lett <steve.lett...@gmail.com> >>>> wrote: >>>> > Hi >>>> > I am a beginner programmer and just came across Racket this week when I >>>> > was >>>> > on the Coursera website. I found the course called Intro to Systematic >>>> > Program Design. I am trying to use Stephen Bloch's Picturing Programs. >>>> > But >>>> > my first attempt was using Quick-An Introduction to Racket with >>>> > Pictures. >>>> > Typing 5 I got 5. Typing "art gallery" I got "art gallery". But when I >>>> > typed >>>> > (circle 10) I got an error message "circle: this function is not >>>> > defined". >>>> > >>>> > If I need a library there is a problem. My only internet conection is on >>>> > the >>>> > Android platform on a Galaxy Tab. So I have downloaded the DrRacket >>>> > software >>>> > and transferred it to my Windows Vista Laptop. I also have an XP desktop >>>> > if >>>> > I need it. >>>> > >>>> > So how can I get (circle 10) to work? >>>> > >>>> > Thank you for being there! It really means alot! Steve Lett >>>> > >>>> > >>>> > ____________________ >>>> > Racket Users list: >>>> > http://lists.racket-lang.org/users >>>> > ____________________ Racket Users list: http://lists.racket-lang.org/users
