Re: [racket] "lab notebook on learning process" (was: Re: Macros baffle me)

2014-05-06 Thread Jim Bender
scussion on performance seems to address mainly #1, and somewhat #2; #3 is actually the more important topic in my case, but not something I see discussed. Jim On Tue, May 6, 2014 at 4:52 PM, Jim Bender wrote: > > > > > Why does he think "Performance sucks"? > > > &

Re: [racket] "lab notebook on learning process" (was: Re: Macros baffle me)

2014-05-06 Thread Jim Bender
> > > > Why does he think "Performance sucks"? > > > > > > Because here's the list of things that are slow > > DrRacket is an operating system running on top of your other OS > to make life for Racket developers simple. It was originally developed > for beginners, but I eat my own dog food, and I f

Re: [racket] Evaluation problem

2012-09-30 Thread Jim Bender
You are missing a pair of parens around '(func first)' and 'second'. The current code in your message will return second, no matter what function you pass in as 'func'. The correct definition for make-pair should be: > define make-pair > (lambda (first) >(lambda (second) > (lambda (fu