I can explain it, but I don't know if it's revealing a solution. rac
On Jan 4, 2011, at 12:32 PM, Stephen Chang wrote: > I get results similar to Carl. > > Welcome to DrRacket, version 5.0.1.7 [3m]. > Language: Intermediate Student. > #i-0.49746596003269394 > #i-0.4974659600326953 > #i-4974659600326939.0 > #i-4974659600326953.0 >> (equal? (sum (g-series #i1000)) (accu-sum (g-series #i1000))) > false >> (equal? (* 10e15 (sum (g-series #i1000))) (* 10e15 (accu-sum (g-series >> #i1000)))) > false >> > > > Luke, can you post the output you get? > > > > > On Tue, Jan 4, 2011 at 10:57 AM, Carl Eastlund <c...@ccs.neu.edu> wrote: >> >> On Tue, Jan 4, 2011 at 9:38 AM, Luke Jordan <luke.jor...@gmail.com> wrote: >>> All that code came straight out of the text, except that I used if instead >>> of cond. The sum, accu-sum, and g-series defs are all given. In your >> >> Ah, yes, now I see where the accumulator-based sum is. Sorry, my mistake. >> >>> results I see a difference. When I run it at home it's the same. I can >>> even (equal? (sum (listof number)) (accu-sum (listof number))) and get true. >> >> No idea what's going on. Maybe someone else will have an idea. >> >> --Carl >> _________________________________________________ >> For list-related administrative tasks: >> http://lists.racket-lang.org/listinfo/users > _________________________________________________ > For list-related administrative tasks: > http://lists.racket-lang.org/listinfo/users _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
