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Re: PARI, GP, etc., Henri Cohen's book, and NEC-BSC

Dave Michelson (davem@bc.sympatico.ca)
Sun, 01 Nov 1998 23:30:59 -0800

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Hi, all.

Art Stone's remarks concerning Henri Cohen's book may be of interest to the
List, so with his permission I'm passing them on.

Concerning other SciEng software: At my urging, The ElectroScience Lab at
Ohio State University has agreed to release a Linux version of NEC-BSC
(Numerical Electromagnetics Code - Basic Scattering Code), a general purpose
code for studying the interaction between antennas and structures using the
uniform geometric theory of diffraction (UTD) :-) (They currently run it
under MS Windows and IRIX.)

Needless to say, I'm a pretty happy camper. My copy should arrive in
mid-November. (I would have preferred source but one of the conditions they
had to satisfy so that NEC-BSC 3.4 could be removed from the export control
list was to distribute binaries only.)

--
Dave Michelson
davem@ee.ubc.ca
Art Stone wrote:
> 
> Dave, 
>
> Anyone who is interested in PARI probably would be interested, too, in
> Henri Cohen's book,
> 
>         A Course in Computational Algebraic Number Theory
>         Springer Verlag
>         Graduate Texts in Mathematics 138, 545pp.
> 
> What I've just picked up is the Corrected Third Printing, 1996.
> The copyright is 1993 -- but the book seems more recent than that.
> 
> It's on sale in the UBC "Yellow Books" Sale right now, about $60
> Canadian (maybe something like $80 otherwise -- but the main thing
> is that there's a copy or two there in the bookstore.  That's not
> always the case.)
> 
> Now this is much more mathematics than engineering, and no one
> who hasn't had at least one course in number theory would be
> interested.
> 
> But I'm finding the book marvelously readable.  (No, I don't
> mean the algorithms themselves -- they don't read like a novel!)
> 
> What Cohen is explaining here is the algorithms used in PARI,
> together with a sketch of the background out of which they
> come.
> 
> There's also a description, a few pages, of what else is available
> (was available at time of writing), packages on the net.

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