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 <[email protected]> wrote:
> f(x)=1/x
> r1=find_root(f,-1,1);r1
> -1.8189894035440371e-12
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