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Author LU decomposition
treadlightly1313@hotmail.com

2005-02-25, 4:01 pm

I need to do LU decomposition of an NxN real matrix using f90.
I am too dim to use netlib.
Can anyone help?

beliavsky@aol.com

2005-02-25, 4:01 pm

treadlightly1...@hotmail.com wrote:
> I need to do LU decomposition of an NxN real matrix using f90.
> I am too dim to use netlib.
> Can anyone help?


The Fortran 77 and Fortran 90 versions of the Numerical Recipes library
have subroutines for LU decomposition that are not difficult to use.
You can buy the code from http://www.nr.com . Also, Googling "lu
filetype:f90" produces some hits.

bv

2005-02-26, 3:58 am

treadlightly1313@hotmail.com wrote:
>
> I need to do LU decomposition of an NxN real matrix using f90.
> I am too dim to use netlib.


Turn that dial clockwise, will ya? Here's what you do:

Send email to, netlib@netlib.org
with "send dgefam from ieeecss/cascade" in the subject line.

A few secs latter you'll get a pie from the sky -- oughta lit you up,
and you won't mind replacing a few "continue"s with "enddo"s to
establish racial (im)purity if you so desire...

Gerald F. Thomas

2005-02-26, 8:57 am


"bv" <bvoh@Xsdynamix.com> wrote in message
news:421FE76C.246E9F6C@Xsdynamix.com...
> treadlightly1313@hotmail.com wrote:
>
> Turn that dial clockwise, will ya? Here's what you do:
>
> Send email to, netlib@netlib.org
> with "send dgefam from ieeecss/cascade" in the subject line.
>
> A few secs latter you'll get a pie from the sky -- oughta lit you up,
> and you won't mind replacing a few "continue"s with "enddo"s to
> establish racial (im)purity if you so desire...
>


Dats funy for a Hun/Kraut. Anyways, MicroPrick Aardpig@hotmail.com and/or
his Boy George hesterloli@hotmail.com will asuredly set the hole nettlelib
and beond strait. Kant waite!

--
You're Welcome,
Gerry T.
______
"Science is the belief in the ignorance of experts." -- Feynman, in The
Pleasure of Finding Things Out.



~Joe

2005-02-26, 3:59 pm

I already have both the numerical recipes and netlib code, but can't
get them to work. Keeps saying something about symbol referencing
errors. And there's no need for sarcasm; I am but a poor luddite
mathematician.
Duane Bozarth

2005-02-26, 3:59 pm

~Joe wrote:
>
> I already have both the numerical recipes and netlib code, but can't
> get them to work. Keeps saying something about symbol referencing
> errors. And there's no need for sarcasm; I am but a poor luddite
> mathematician.


Well, specifics of what you did and what the problem is <might> help...

Include platform/compiler and <short> code demonstrating problem.
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