On 10/10/10, Dieter Kaiser <drdieterkaiser at web.de> wrote:
> The directory share/integration contains the undocumented function
> BYPARTS and the undocumented package DELTA. The function BYPARTS
> implements a rule of partial integration, e.g.
>
> (%i12) load(bypart)$
>
> (%i13) byparts(x*sin(x),x, x, sin(x));
> (%o13) sin(x)-x*cos(x)
>
> The decomposition has to be made by hand. In the example from above we
> have u(x) = x and v'(x) = sin(x). Perhaps, we should cut out this small
> undocumented function.
>
> The package DELTA is broken. The package needs the two functions
> REMOVEIMAG and REM_OUT_OF_RANGE, which are not present in Maxima or
> Maxima share. I have not checked, if it is worth to fix this package.
I'm inclined to think that we should consolidate the stuff in share.
We'll have to pick and choose what's worth keeping.
Looks to me like we can cut out bypart and delta.
best
Robert Dodier