# [racket] Am I Missing Something? [HtDP 31.3.1]

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 <cce at ccs.neu.edu> wrote:
>*
*>* On Tue, Jan 4, 2011 at 9:38 AM, Luke Jordan <luke.jordan at 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
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