It does seem to work for me on sage-9.4 on cocalc, so can you provide a complete log of what you're doing, etc.?
~$ sage ┌────────────────────────────────────────────────────────────────────┐ │ SageMath version 9.4, Release Date: 2021-08-22 │ │ Using Python 3.9.5. Type "help()" for help. │ └────────────────────────────────────────────────────────────────────┘ sage: RBF(stieltjes(1)) [-0.07281584548367673 +/- 2.30e-18] sage: RBF(1/sqrt(2)) [0.707106781186547 +/- 7.95e-16] sage: Exiting Sage (CPU time 0m0.24s, Wall time 0m39.76s). ~$ uname -a Linux project-2cc650fd-1b95-467b-b748-75b421914dae 5.11.0-1020-gcp #22~20.04.1-Ubuntu SMP Tue Sep 21 10:54:26 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux On Tue, Nov 9, 2021 at 11:34 AM [email protected] <[email protected]> wrote: > > PS. I have the same issue with RBF(1/sqrt(2)). > > Le mardi 9 novembre 2021 à 20:31:33 UTC+1, [email protected] a écrit : >> >> Hi, >> >> RBF(stieltjes(1)) no longer works. It now gives the error message >> >> TypeError: unable to convert stieltjes(1) to a RealBall >> >> I realize that this means it most likely wasn't working right before (the >> code must have worked because Sage fell back on SymbolicRing -> RealField -> >> RBF, which shouldn't happen). I also realize that I could type >> RBF(RIF(stieltjes(1)), but that's a stopgap measure that shouldn't be >> necessary, since stieltjes(1) is in fact implemented in ARB. >> >> version: Sagemath 9.3 on an Intel Mac Mini (Mac OS Monterrey) >> or Sagemath 9.4 on cocalc. >> >> Best >> Harald > > -- > You received this message because you are subscribed to the Google Groups > "sage-devel" 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/sage-devel/0500174a-66ab-4491-aad1-6727af69cbbbn%40googlegroups.com. -- William (http://wstein.org) -- You received this message because you are subscribed to the Google Groups "sage-devel" 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/sage-devel/CACLE5GAOv5yXgrrL81xZKKPCJc%2BtWh1w1tmPV7-zE0NnfQHq7g%40mail.gmail.com.
