In article [EMAIL PROTECTED],
Just [EMAIL PROTECTED] wrote:
Heh, how big are the odds you find the author of an arbitrary Perl
module on c.l.py...
Hey, that's why it's called lurking.
Any will do. As I wrote in another post, I'm currently only looking for
a quintic equation solver, which your module does very nicely.
The
original source for the algorithm used in the module is
from Hiroshi Murakami's Fortran source, and it shouldn't
be too difficult to repeat the translation process to python.
Ah ok, I'll try to locate that (following the instruction in Solve.pm
didn't work for me :( ).
Ouch. I just did a quick search and found that that site has undergone
a few changes, and the code that i reference is missing. A few other
links in the docs are stale too. I need to update the documentation.
Anyway, doing a search for 'hqr' and Eispack got me a lot of sites.
In particular, this one is pretty friendly:
http://netlib.enseeiht.fr/eispack/
Look at the source for balanc.f (does the prep-work) and hqr.f
(does the solving). Minor annoyance: the real and imaginary
parts of the roots are in separate arrays. I combined them into
complex types in my perl source, in case you want to make a
comparison.
Of course, all this may be moot if the other suggestions
work out.
--
-john
February 28 1997: Last day libraries could order catalogue cards
from the Library of Congress.
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