Re: question about DrScheme

[Matthias Felleisen <matthias@cs.rice.edu>]

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  > Date: Thu, 24 May 2001 05:10:28 +0700
  > From: Cynthia <tjioe@elang.stts.ac.id>
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  > 
  > Hi, please introduce. My name is Cynthia.
  > I am just a beginner to use DrScheme 101. Only a few days ago. I was trying
  > to run some files at htdp like hangman & pingp-play. But I can't do it.
  > There was an error message :
  > C:\PROGRAM FILES\PLT\collects\htdp\big-draw.ss: 7.20-7.34: Unbound
  > signature name: plt:userspace^
  > 
  > My questions are :
  > 1. What's wrong ? What can I do to make it work ?

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You seem to be using (require-library "draw.ss") rather than adding the
teachpack via the Langage menu. These are two different mechanisms. 
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  > 2. Can you tell me some collections of interesting artificaial intelligence
  > programs that I can run in DrScheme ?

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My colleague Devika Subramanian has developed some AI programs in Java and
Scheme. She's compiling a book-size web package over the next six months. 
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  > 3. Do the language of DrScheme using the standard of Scheme language ?

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DrScheme is implemented in MzScheme. This language extends R4RS with many
constructs: structures, exceptions, classes, modules, etc. They are
necessary to organize very large, extensible programs such as DrScheme
(200,000 lines of code). 

DrScheme provides three plus four languages at the moment. The first three
are so-called teaching languages: Beginner, Intermediate, Advanced. The 
four are full MzScheme with or without graphics, with or without debugging
support. (W/o debugger programs run four to five times faster.) 

We call the collection "the PLT Scheme suite." 
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  > 
  > I am expected for your answer. This language is really good & I like the
  > playing cards games. I want to learn about it. Thanks for your attention.
  > I'll be waiting for your reply.
  > 
  > Regards,
  > Cynthia
  > 

Thanks. I am translating the playing card games into teachpacks so that
teachers can use them with students without i/o overhead. 

Hope this helps -- Matthias