home *** CD-ROM | disk | FTP | other *** search
-
-
-
- ____RRRRSSSSGGGGBBBBAAAA((((3333FFFF)))) ____RRRRSSSSGGGGBBBBAAAA((((3333FFFF))))
-
-
-
- NNNNAAAAMMMMEEEE
- RSGBA, SRSGBA - EISPACK routine. This subroutine calls the
- recommended sequence of subroutines from the eigensystem subroutine
- package (EISPACK) to find the eigenvalues and eigenvectors (if desired)
- for the REAL SYMMETRIC generalized eigenproblem BAx = (LAMBDA)x.
-
-
- SSSSYYYYNNNNOOOOPPPPSSSSYYYYSSSS
- ssssuuuubbbbrrrroooouuuuttttiiiinnnneeee rrrrssssggggbbbbaaaa((((nnnnmmmm,,,, nnnn,,,, aaaa,,,, bbbb,,,, wwww,,,, mmmmaaaattttzzzz,,,, zzzz,,,, ffffvvvv1111,,,, ffffvvvv2222,,,, iiiieeeerrrrrrrr))))
- iiiinnnntttteeeeggggeeeerrrr nnnnmmmm,,,, nnnn,,,, mmmmaaaattttzzzz,,,, iiiieeeerrrrrrrr
- ddddoooouuuubbbblllleeee pppprrrreeeecccciiiissssiiiioooonnnn aaaa((((nnnnmmmm,,,,nnnn)))),,,,bbbb((((nnnnmmmm,,,,nnnn)))),,,,wwww((((nnnn)))),,,,zzzz((((nnnnmmmm,,,,nnnn)))),,,,ffffvvvv1111((((nnnn)))),,,,ffffvvvv2222((((nnnn))))
-
- ssssuuuubbbbrrrroooouuuuttttiiiinnnneeee ssssrrrrssssggggbbbbaaaa((((nnnnmmmm,,,, nnnn,,,, aaaa,,,, bbbb,,,, wwww,,,, mmmmaaaattttzzzz,,,, zzzz,,,, ffffvvvv1111,,,, ffffvvvv2222,,,, iiiieeeerrrrrrrr))))
- iiiinnnntttteeeeggggeeeerrrr nnnnmmmm,,,, nnnn,,,, mmmmaaaattttzzzz,,,, iiiieeeerrrrrrrr
- rrrreeeeaaaallll aaaa((((nnnnmmmm,,,,nnnn)))),,,,bbbb((((nnnnmmmm,,,,nnnn)))),,,,wwww((((nnnn)))),,,,zzzz((((nnnnmmmm,,,,nnnn)))),,,,ffffvvvv1111((((nnnn)))),,,,ffffvvvv2222((((nnnn))))
-
-
-
- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- On Input
-
- NNNNMMMM must be set to the row dimension of the two-dimensional array
- parameters as declared in the calling program dimension statement.
-
- NNNN is the order of the matrices A and B.
-
- AAAA contains a real symmetric matrix.
-
- BBBB contains a positive definite real symmetric matrix.
-
- MMMMAAAATTTTZZZZ is an integer variable set equal to zero if only eigenvalues are
- desired. Otherwise it is set to any non-zero integer for both
- eigenvalues and eigenvectors. On Output
-
- WWWW contains the eigenvalues in ascending order.
-
- ZZZZ contains the eigenvectors if MATZ is not zero.
-
- IIIIEEEERRRRRRRR is an integer output variable set equal to an error completion code
- described in section 2B of the documentation. The normal completion code
- is zero.
-
- FFFFVVVV1111 and FV2 are temporary storage arrays. Questions and comments should
- be directed to B. S. Garbow, APPLIED MATHEMATICS DIVISION, ARGONNE
- NATIONAL LABORATORY
-
-
-
-
-
-
-
-
-
-
- PPPPaaaaggggeeee 1111
-
-
-
-