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Published on 2010-05-03T04:17:25Z
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Write a Scheme program which returns a list of the prime divisors of a positive integer greater than 2.
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I want to see if I can map PLT Scheme structure fields to columns in a DB.
I've figured out how to extract accessor functions from structures in PLT scheme using the fourth return value of:
(struct-type-info)
However the returned procedure indexes into the struct using an integer. Is there…
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So I need some help with implementing a Make-memory program using Scheme. I need two messages 'write and 'read. So it would be like (mymem 'write 34 -116) and (mymem 'read 99) right? and (define mymem (make-memory 100)).....How would I implement this in scheme? using an Alist???I need some help coding…
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I'm trying to hook up URL dispatch with PLT Scheme. I've taken a look at the tutorial and the server documentation. I can figure out how to route requests to the same servlets.
Specific example:
(define (start request)
(blog-dispatch request))
(define-values (blog-dispatch blog-url)
(dispatch-rules
…
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PLT Scheme guide says that it's implemented sort function is able to sort a list according to an extarcted value using a lambda function. link text
The guide provides an unworking code example of this-
(sort '(("aardvark") ("dingo") ("cow") ("bear"))
#:key car string<?)
Which returns…
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I am writing a tic-tac-toe game in plt-scheme as my AI course project.
The idea for gui is a grid with 9 boxes, each with a canvas, using panes ...
When the user click on a canvas, 'X' or 'O' will be drawn accordingly ...
The question is how can I catch mouse click event on canvas?
I found out I…
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Hello Everybody,
I am suppose to "write a Java program that reads a positive integer n from standard input, then prints out the first n prime number." It's divided into 3 parts.
1st: This function will return true or false according to whether m is prime or composite. The array
argument P will contain…
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Write a Scheme program which returns a list of the prime divisors of a positive integer greater than 2.
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Let's say we have numbers factors, for example 1260:
>>> factors(1260)
[2, 2, 3, 3, 5, 7]
Which would be best way to do in Python combinations with every subproduct possible from these numbers, ie all factorings, not only prime factoring, with sum of factors less than max_sum?
If I do…
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