[clug] F/OSS Alternatives

[Ben Chaplin]

Since the OS X thread got derailed into a "proprietary software is  
evil" thread (as is only right on a LUG mailing list!), I've been  
thinking about what my linux experience lacks.

I would like F/OSS alternatives to the following:
* PSPICE (electronics analysis)
* Maple (Maths)
* Matlab (Maths)

Maple and Matlab aren't all that important but I'd love an alternative  
to PSPICE.

Also, can anyone recommend a nice RPN calculator?  There are times  
when I find dc a little bit frustrating, so something with buttons  
that I can click would be nice.  I feel so dirty asking for graphical  
software when there's a perfectly good command line program, but oh  
well.

Cheers,
Ben