I had this exact same question when I looked at the RacketScript issue lol.
The answer is https://docs.racket-lang.org/reference/numbers.html: a complex number with an exact zero imaginary part is a real number. Since 0.0 is not exact, 0.0i is not a real number. On Fri, Nov 19, 2021 at 11:59 AM Stephen Chang <[email protected]> wrote: > In the following, why is the first considered a real number but the > second considered not real > > > (real? 0.0+0i) > #t > > (real? 0.0+0.0i) > #f > > -- > You received this message because you are subscribed to the Google Groups > "Racket Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/racket-users/CAFfiA1%2BYygGrLH2rtwby8AWg7Edyvq-tzmANTNypq5Rqd-eXFw%40mail.gmail.com > . > -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/racket-users/CADcuegu2iBp3847QRgPcqzH4JoR%3DFpUXPf-n_G7xP1%3DWmfs85w%40mail.gmail.com.
