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3 votes
0 answers
130 views

Performance issue regarding Project Euler #60 in Scheme

I solved Project Euler #60: The primes 3, 7, 109, and 673, are quite remarkable. By taking any two primes and concatenating them in any order the result will always be prime. For example, taking 7 ...
Jay Lee's user avatar
  • 163
5 votes
1 answer
318 views

Simple evaluator of Scheme-like expressions in Haskell

This is my first nontrivial Haskell program: ...
Richard Cook's user avatar
7 votes
1 answer
1k views

Code from "Write Yourself a Scheme in 48 Hours" tutorial

I recently went through this Haskell tutorial. I'd be interested in any thoughts or comments at all, in terms of improving the structure, order, haskell conventions, or that long, kind of ugly eval ...
Irene Papakonstantinou's user avatar
11 votes
1 answer
575 views

On Implementing a Lisp

Background: This began with James Colgan's Lisp-Dojo for Ruby. My implementation can be found here. I then moved on to Write yourself a scheme in 48 hours. This question has to do with one of the ...
John F. Miller's user avatar