MIT Scheme\'s (load ...) procedure apparently takes in an environment as a parameter. Is there any way I could \"clone\" the current environment and pass it there, so that I can isolate the file\'s en
trying to make a scheme procedure called make-odd-mapper! its supposed to be a procedure that takes one input, a procedure, and produces a procedure as an output
Note: I am not asking which to learn, which is better, or anything like that. I picked up the free version of SICP because I felt it would be nice to read (I\'ve heard good stuff about it, and I\'m i
I got this program: (define a 2) (define (goo x) (display x) (newline) (lambda (y) (/ x y))) (define (foo x)
I have a list containing letters. When I do (car \'(a)) it gives me the symbol a. How do I compare it to the characte开发者_如何学Pythonr a?
so theres this code called ret-odds ex: (define (ret-odds lst) (if (null? lst) null (if (null? (cdr lst)) null
I\'m trying to make a procedure called map-odd-mapper where I 开发者_运维问答take a proc that can then be applied to a list
I have railroad1 and station1 defined, and I want to update the value of railroad1 without using set! or another define. For example:
This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time,or an extraordinarily narrow situation that is not generally applic
I am trying to map let and set! onto lists something like this: (map (lambda (x) (let ((x #f)))) <list>)
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