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
