Dan Drake wrote:
> sage: f = sqrt(1-x^2)
> sage: g = diff(f, x); g
> -x/sqrt(1 - x^2)
> sage: limit(g, x=1, dir='below')
> +Infinity
>
> It's a semicircle, so the derivative should go to negative infinity on
> the right side.
Hmm. Did you mean the left side? I'm probably missing someth
On Wed, Sep 17, 2008 at 9:04 PM, Dan Drake <[EMAIL PROTECTED]> wrote:
> I found a bug in a limit evaluation:
>
> sage: f = sqrt(1-x^2)
> sage: g = diff(f, x); g
> -x/sqrt(1 - x^2)
> sage: limit(g, x=1, dir='below')
> +Infinity
>
> It's a semicircle, so the derivative should go to negative inf
