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cubics & quartics
| Re: cubics & quartics [message #6595 is a reply to message #6502] |
Thu, 11 July 1996 00:00  |
kachun
Messages: 7
Registered: June 1996
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Junior Member |
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In article <31E41FF0.F66@cdc.noaa.gov>, Andy Loughe <afl@cdc.noaa.gov> wrote:
> Ka Chun Yu wrote:
>>
>> Does anyone know of a (personal) library routine that can solve cubics
>> and (even better yet) quartics? Nothing comes up on IDL help with
>> searches for those keywords.
>
>
> Does fz_roots accomplish what you need?
I guess fz_roots will work for now, but what I'm really interested in
is a program that solves using the analytic solution for quartics (and
I'm too lazy right now to program mine own in ;). I basically have to
create a 2-D array where each bin is the root of a quartic equation, so
using fz_roots means looping through each bin of the array. This is
okay for small arrays right now but not for any big ones in the future.
> Andrew F. Loughe afl@cdc.noaa.gov
> University of Colorado, CIRES http://cdc.noaa.gov/~afl
> Campus Box 449 phn:(303)492-0707 fax:(303)497-7013
> Boulder, CO 80309-0449 "He who laughs last thinks slowest!"
--
--kachun +** Center for Astrophysics and Space Astronomy **+
+** University of Colorado, Boulder **+
+** Email: kachun@casa.colorado.edu **+
+** http://casa.colorado.edu/~kachun **+
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