Computer algebra system?



Vadim wrote:
> Hedos wrote:

>> such as
>> Maxima, or perhaps as somebody else mentionned, SAGE?
> 
> 

> 
> However studying SAGE has many YES and NOs, IMO.
> 
> Essentially SAGE is a bridge between different CAS systems.
> So deepening into it will allow you to widen your vision on the subject.
> 

SAGE is much more than that, see:
http://www.sagemath.org/ or http://sage.math.washington.edu/sage/

> On the other side, while there are many applauses to SAGE, I do not see
> it really much useful.
> It connects different CAS mostly using commands and pipes, which I find
> as not a robust way.

Why not?

> It uses the Python language, and everywhere in the code it mentions how
> much Perl is bad programming language.
> 

This is certainly not true!

> IMO just striping away all impolite comments from SAGE will improve its
> overall impression.
> 

Please give an example of impolite code!
I invite everybody to view the code on the homepage of SAGE:
http://www.sagemath.org/hg/sage-main?cmd=manifest;manifest=-1;path=/sage/

Regards,

Jaap