Ask your instructor whether it would be okay to learn Racket instead.
On Jun 2, 2014, at 2:55 PM, Tim <vis.314...@gmail.com> wrote: > I am using R5RS because I have to learn Scheme for a class. > When I looked up some examples of using eval and all the ones that I saw > for some reason had that > user-initial-environment. So now it works thank you. > > > On 06/02/2014 02:31 PM, Danny Yoo wrote: >> On Mon, Jun 2, 2014 at 10:45 AM, Tim <vis.314...@gmail.com> wrote: >>> Hi, I am using DrRacket 6.0.1 with language R5RS when I try to evaluate the >>> statement: >>> (eval '(+ 1 2) user-initial-environment) >>> I get the error: >>> "user-initial-environment: undefined;" >>> >>> Am I doing something wrong? Thank you. >> Hi Tim, >> >> (Is there a reason why you're using r5rs, out of curiosity?) >> >> Reading docs... ok! Is user-initial-environment a part of r5rs, or an >> extension to the standard? I'm looking at: >> >> >> http://groups.csail.mit.edu/mac/ftpdir/scheme-reports/r5rs-html/r5rs_8.html#SEC65 >> >> and I see no occurrence of "user-initial-environment" in the official >> R5RS standard. >> >> >> The following does appear to do something: >> >> ########################################### >> (display (eval '(+ 1 2) (scheme-report-environment 5))) >> ########################################### > > ____________________ > Racket Users list: > http://lists.racket-lang.org/users ____________________ Racket Users list: http://lists.racket-lang.org/users
