On Sat, Sep 16, 2017 at 7:27 AM, Mickael Pechaud <mickaelpech...@gmail.com> wrote: > Hello, > > I'm running SageMath 7.2, on a 64bits laptop with a Ubuntu 16.04.2 LTS > (xenial). I got a wrong answer from cos : > > sage: float(cos(14*pi/9)) > -0.17364817766693041 >
FYI, cocalc.com returns 0.17364817766693041 > It should be positive - and it's inconsistent with the following lines : > > sage: float(cos(14*pi/9-2*pi)) > 0.17364817766693041 > > > sage: float(14*pi/9) > 4.886921905584122 > > sage: float(cos(4.886921905584122)) > 0.17364817766692953 > > Am I missing something, or is there an actual problem here ? > > Thanks in advance, > > Mickaël > > -- > 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 sage-devel+unsubscr...@googlegroups.com. > To post to this group, send email to sage-devel@googlegroups.com. > Visit this group at https://groups.google.com/group/sage-devel. > For more options, visit https://groups.google.com/d/optout. -- 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 sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
