Using symbolic computation: sage: x=var('x') sage: solve(1/x==0) [ ] sage:
However, and like matlab fzero command, the numerical answer of the equation is $x \approx 0$ because of the change of sign of $1/x \in [-1,1]$. Maybe the "find_root" documentation needs to mention that continuity of $f$ is necessary. jpc On Mar 15, 3:54 am, yacob <imya...@gmail.com> wrote: > f(x)=1/x > r1=find_root(f,-1,1);r1 > -1.8189894035440371e-12 --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---