Re: [Maxima-bugs] [ maxima-Bugs-1281737 ] limit(atan(x)/(1/exp(1)-exp(-(1+x)^2)),x,inf,plus) - wrong



Here's what commercial macsyma does...Robert Dodier wrote:

> hello,
> 
> another data point -- running a recent cvs build / clisp 2.33.2,
> on fedora 1 linux, i don't get quotient by zero for these cases:
> 
> (%i1) tlimit(atan(x)/(1/exp(1)-exp(-(1+x)^2)),x,inf,plus);
> (%o1)                           0

%e*%pi/2

> (%i2) taylor(atan(x)/(1/exp(1)-exp(-(1+x)^2)),x,inf,1);

TAYLOR encountered an essential singularity in ...


> Is  x  positive or negative?
> 
> p;
> (%o2)/T/                    0 + . . .
> (%i3) build_info();
> 
> Maxima version: 5.9.1hack
> Maxima build date: 23:50 9/12/2005
> host type: i686-redhat-linux-gnu
> lisp-implementation-type: CLISP
> lisp-implementation-version: 2.33.2 (2004-06-02)
> 
> 
> for what it's worth,
> robert dodier
> 
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