Advice to math users - 
Develope a hand calculated test case to check the accuracy of the SW.   This 
should be something like what you want to calculate.
A few years ago a SW company tried to sell the Engineers at GE Engine Control 
Systems a do it all package.   In front of the audience and Developers I put 
up a test case with a trivial answer that was known as a truth.   It failed 
miserably due to errors in the input translation from the GUI to the real 
calculations.   
So before you use a Math Package build a test case - all you need is bad 
answers to waste time, money or destroy machinery.

Sign on my wall - "To error is human it takes a computer to really foul things 
up". !

I'm not being picky but just be careful in applying it.

Try "R" for fun and games.
How about a fast Fourier transform to convert time domain stuff to frequency 
domain.   Helps exercise the neurons.

Larry Linder
On Friday 01 July 2011 11:50 am, Alain Péan wrote:
> Le 01/07/2011 17:16, Timmy Siu a écrit :
> > Dear All SL User:
> > I found this mathematics software.  It is very big in size (about 1GB
> > after extraction).  It doesn't have any GUI.  It only comes in Linux
> > binary, no windows binary.
> >
> > Can anyone give some hint to using it and what task can it compute?? :-(
> >
> > http://www.sagemath.org/index.html
>
> Hi Timmy,
>
> If I remember correctly, Sage has indeed a GUI, but through a web
> interface. See :
> http://www.sagemath.org/tour-graphics.html
>
> It is in fact a Python software mixing a lot of scientific tools (Numpy,
> scipy, Matplotlib and so on...). It has indeed a windows version (why
> not, it is Python, and web interface ?), and also for mac osx, solaris...
> http://www.sagemath.org/download-windows.html
>
> Alain