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LAPACK example programs [ from NAG ]

PostPosted: Thu Feb 02, 2006 4:43 pm
by admin
Newly created Fortran77 example programs for LAPACK, have been released by the Numerical Algorithms Group (NAG).
These example programs are designed to help less experienced users to call LAPACK routines correctly.

http://www.nag.com/lapack-ex/lapack-ex.html

They provide an example of the use of each of the double precision LAPACK drivers.
Each example comprises :
- a description of the problem,
- the example program in Fortran77.
- the example data
- and the example result.
Non-LAPACK routines, mainly matrix printing routines, are provided as free downloads.

Thanks to the NAG company, to NAG Consultant Sven Hammarling and to his team for sharing with us their hard work.

Re: LAPACK example programs [ from NAG ]

PostPosted: Mon Jun 26, 2006 2:38 am
by gektor
Nice example!

PostPosted: Tue Nov 07, 2006 3:01 am
by tailender
i have been searching over net for these examples
great

PostPosted: Sun Jan 28, 2007 1:44 am
by kdallen

PostPosted: Mon Dec 10, 2007 6:57 pm
by creative4w3
The link isn't loading for me.... arggggg help

edit: Nevermind... I hate IE.

Re: LAPACK example programs [ from NAG ]

PostPosted: Fri Jan 27, 2012 12:11 am
by stevegd
Thank you for all your help much appreciated.

Re: LAPACK example programs [ from NAG ]

PostPosted: Mon Dec 31, 2012 5:43 am
by waeldalal
Hi every one, I am newly registered and I have a lot of Questions:
first: I am tring to run dgeqrf from plasma for factorization, I just copy the same example in plasmas example and add
for(i= 0 ; i < N ; i++ )
{
for ( j = 0 ; j < p ; j++ )
{
printf("%2.10e\t", *(Q+i*N+j));
}
printf("\n");
}
to print the matrix A1, and resulting Q, R.
but I got a very bad orthogonality results of Q, and a big error of (A1-QR).

can any one help me to figure out what going on?