But I have another question. What should I do if need to go back to BSL from time to time as I am still working with Htdp/2.
Will you advise to go through Realm of Racket fully and then re-try Htdp/2? Saad On Sun, Nov 3, 2013 at 2:14 PM, Geoffrey S. Knauth <[email protected]> wrote: > Glad you got it working! > > > On Sun, Nov 3, 2013, at 6:11, Saad Bashir wrote: > > Thank you for your help. I reinstalled Racket and chose the correct > language and the problems is solved. > > Great forum. > > Saad > > > On Sun, Nov 3, 2013 at 1:50 PM, Saad Bashir <[email protected]> wrote: > > Thank you very much. > > I surmised as much but the problem is when I go to the language option in > Racket and click on choose language, there is no option for Racket > language. > > What should I do? > > Saad > > > On Sun, Nov 3, 2013 at 12:47 PM, Geoffrey S. Knauth <[email protected]>wrote: > > > > Saad, at first I thought the problem was you put a space after the > single-quote mark. I tried what you entered using the Beginning Student > with List Abbreviations language, and it worked, space or no space: > > > > '((1 3 5 7 9) (2 4 6 8 0)) > (list (list 1 3 5 7 9) (list 2 4 6 8 0)) > > ' ((1 3 5 7 9) (2 4 6 8 0)) > (list (list 1 3 5 7 9) (list 2 4 6 8 0)) > > Then I tried with the Beginning Student Language, and I got what you got: > > '((1 3 5 7 9) (2 4 6 8 0)) > quote: expected the name of the symbol after the quote, but found a part > > Then I thought, "Better look at *Realm of Racket*." On page 21, the > page before page 22, it says that for the immediately following examples, > you should pick "The Racket Language" (not Beginning Student Language). > > Geoff > > On Sun, Nov 3, 2013, at 4:11, Saad Bashir wrote: > > I have been working with Htdp/2 as an absolute beginner and finding it > difficult have switched to Realm of Racket. > > In the first pages it asks one to download Racket which I already have but > in the BSL mode. When using it I type in the following in the interactions > panel as advised by Realm of Racket to see about lists (page 22): > > ' ((1 3 5 7 9) (2 4 6 8 0)) > > the message I get is: > > quote: expected the name of the symbol after the quote, but found a part > > It does not return the list as it is supposed to in the book. > > Is this because I am using BSL? If so what should I do/ > > Thank you for any help. > > Saad > *____________________* > Racket Users list: > http://lists.racket-lang.org/users > > > -- > Geoffrey S. Knauth | http://knauth.org/gsk > > > > > ____________________ > Racket Users list: > http://lists.racket-lang.org/users > > > > > > > > -- > Geoffrey S. Knauth | http://knauth.org/gsk > > >
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