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
