Intel® Fortran Compiler
Build applications that can scale for the future with optimized code designed for Intel® Xeon® and compatible processors.
Announcements
FPGA community forums and blogs on community.intel.com are migrating to the new Altera Community and are read-only. For urgent support needs during this transition, please visit the FPGA Design Resources page or contact an Altera Authorized Distributor.
29285 Discussions

how to get the eigen values using fortran

matthewkmk
Beginner
‎01-08-2003 08:51 AM
1,473 Views
if i have a matrix, i need to calculate the eigen , how to perform it using fortran ,thx
0 Kudos

Link Copied

4 Replies
david_jones
Beginner
‎01-08-2003 10:32 AM
1,473 Views
Subroutines are available in various libraries. Recent CVF comes with the CXML library which does contain routines for eigenvalues.

The online help says ...
"For information about the CXML routines (after installation), use Acrobat Reader to open the file cxmlref.pdf in:
Program FilesMicrosoft Visual StudioDf98CxmlDoc"

Another possibility is the IMSL library which comes with CVF Professional version.

0 Kudos
Copy link
Jugoslav_Dujic
Valued Contributor II
‎01-08-2003 02:10 PM
1,473 Views
...or visit (and bookmark) www.netlib.org. IIRC ARPACK is one of packages containing calculation of eigenvalues.

Jugoslav
0 Kudos
Copy link
matthewkmk
Beginner
‎01-09-2003 12:36 PM
1,473 Views
thx very much.
0 Kudos
Copy link
matthewkmk
Beginner
‎01-09-2003 12:37 PM
1,473 Views
thx very much also.
0 Kudos
Copy link
Reply

Community support is provided Monday to Friday. Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.