SCIP Videos

The Berkeley ones are from this semester

I've been watching some of the Berkley videos but I'm not sure what scheme spec they are using. I know the are using STk and I'm using DrScheme and it doesn't seem to matter which spec I choose I'm always missing some function or another. Most of the time it's functions like butfirst and bf. Any idea if I can get the system they are using without using the crap that is STk?

Nice, I hadn't seen the Berkley ones before, and the MIT ones do sort-of show their age.

FYI, it's SICP, not SCIP.

Woops, I'm retarded :D

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Original post by tstrimp I've been watching some of the Berkley videos but I'm not sure what scheme spec they are using. I know the are using STk and I'm using DrScheme and it doesn't seem to matter which spec I choose I'm always missing some function or another. Most of the time it's functions like butfirst and bf. Any idea if I can get the system they are using without using the crap that is STk?

If I recall correctly, this class used this version of Scheme.

Quote:

Original post by Colin Jeanne If I recall correctly, this class used this version of Scheme.

Thats one of the versions I was using and it doesn't contain any sentence or word related procedures. Maybe they added those so they didn't confuse students by jumping into lists right away.

In 'Recursion and Iteration 1' he mentions they use a library for those procedures.

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Original post by tstrimp Quote: Original post by Colin Jeanne If I recall correctly, this class used this version of Scheme. Thats one of the versions I was using and it doesn't contain any sentence or word related procedures. Maybe they added those so they didn't confuse students by jumping into lists right away.

What do you mean 'sentence and word related procedures'? I dont have Real so I cant watch the videos so I dont know what procedures you're talking about. It might be one of the procedures that was discussed in a homework assignment for the course, in which case this is the current course website and the link "Library Files" is a directory which includes all of the Scheme code used in the class.

From my understanding they are just using:
first instead of car
butfirst instead of cdr
sentence instead of list
and words to represent items in a list.

Now that I've got that straight in my head I don't think I have any more problems (yet).

Interesting. When I took the course two years ago they were only using first instead of car and last instead of cdr. I believe STk implements these natively so it was easy for us. I never used butfirst, sentence, or words though. You might want to check the lectures to see if it mentions them. If not you could also grab a copy of Berkeley's version of STk to see if it knows the functions.

Edit: Actually, according to this document, there is a file which contains all of the Berkeley-defined procedures. If you one of the prebuilt binaries (or, I suppose, if you download the source) it will include these files. Here is the prebuilt version for XP. You want to use stk-simply

I took it spring 2003. If I remember, they use first/last/butfirst for character strings, and later on when they introduce lists, they use car and cdr. Maybe it's changed since then though.

I think most of the berkeley specific scheme functions are here:

http://www.cs.berkeley.edu/~bh/downloads/simply/simply.scm

For sure it has first, butfirst, last, butlast, word, and sentence.

They're a bit complicated though, it might be better to just use the berkeley scheme when trying to follow the lectures, since I think that will load all this stuff when it starts up.

[Edited by - blarn on November 28, 2006 10:35:20 PM]

Please note, the semester for Berkeley ends December 19th. Webcast videos are not saved across semesters so if you are able to record them I highly encourage you to.