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MIT 6.001 Structure and Interpretation of Computer Programs, Spring 2005 16 Online
OpenStudy (anonymous):

I really need help with negotiating around the scheme and edwin editors. Everytime I evaluate something I get an error even when I copy the example from the SICP book. Anybody help?

OpenStudy (anonymous):

Try using DrRacket, its a lot easier to use. If you get an error regarding the use of a procedure, you might just need to define it. In my version of scheme, for example the procedure -1+ wasn't defined, so I had to create it before using it.

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