Structure and Interpretation of Computer Programs

Class length: 13 weeks. Start anytime.

Creator: kday

Status: Established

I have been working through the exercises in the book using DrScheme and was running into problems with the different versions of the language - each one is incompatible in different ways.

I discovered that someone made a specific SICP language add-on for DrScheme. To use it, open a new DrScheme instance and in the definitions window type: #lang planet neil/sicp

Run this and it will download and install the SICP package. Restart DrScheme and then go to the switch language window and you will see a new "SICP" language available. This should make doing the exercises a lot easier since you don't have to keep running into the quirks of the different languages.

SomeIrishGuy
5 months ago

More information is available here:

http://www.neilvandyke.org/sicp-plt/

SomeIrishGuy
5 months ago

I have found pretty good luck using R5RS. I'll give this a shot if next time I run into an issue though.

dtmetz
5 months ago

Some of the problems I had are:
It cannot redefine the "built-in" procedures. So if you try to define a procedure called "apply", you will get errors. You can override this in the language options however.
It doesn't seem to support the "error" procedure. I am sure something similar is in there, I just don't know its name.
The problem I had with the "Module" scheme was that cons produces immutable pairs, and you need to use special procedures to create/mutate mutable pairs.

None of these issues are too difficult to work around, it's just nice when your environment matches the text you are working from.

I think that this also supports the "picture language" from chapter 1, though I haven't tried that out.

SomeIrishGuy
5 months ago

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