I second ~r. It will round when given a precision.

> On May 7, 2018, at 18:56, Stephen Chang <stch...@ccs.neu.edu> wrote:
> Oops, I didnt see the rounding.
> On Mon, May 7, 2018 at 7:53 PM, Ben Greenman
> <benjaminlgreen...@gmail.com> wrote:
>> I use this:
>> http://docs.racket-lang.org/gtp-util/index.html#%28def._%28%28lib._gtp-util%2Fmain..rkt%29._rnd%29%29
>> I didn't know about SRFI 54 --- looking forward to reading other responses.

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