Is integration and differentiation code sepparate?
Subject: Is integration and differentiation code sepparate?
From: Raymond Toy
Date: Sun, 14 Nov 2010 10:37:52 -0500
On 11/14/10 10:23 AM, Barton Willis wrote:
> Except for endless versions of bugs such as
>
> (%i1) integrate(x^(1/(1+%i) - (1/2-%i/2)-1),x,0,1);
> Maxima encountered a Lisp error: Error in PROGN [or a callee]: Zero divisor.
>
> I think you'll need to move away from testing integrals of sums of powers
> to more general kinds of integrands.
>
> I'd guess that if you worked at this long enough, you could collect some new Maxima bugs.
> Random testing will most likely generate endless variations of the same bug (an undetected
> pole in a definite integral, for example).
>
> If idle electrons bother you, generating random tests might be amusing.
But I, for one, am not particularly interested in fixing bugs that are
created by random tests.
Ray