home *** CD-ROM | disk | FTP | other *** search
-
-
-
- CCCCPPPPOOOOFFFFAAAA((((3333FFFF)))) CCCCPPPPOOOOFFFFAAAA((((3333FFFF))))
-
-
-
- NNNNAAAAMMMMEEEE
- CPOFA - CPOFA factors a complex Hermitian positive definite matrix.
-
- CPOFA is usually called by CPOCO, but it can be called directly with a
- saving in time if RCOND is not needed. (Time for CPOCO) = (1 +
- 18/N)*(Time for CPOFA) .
-
-
- SSSSYYYYNNNNOOOOPPPPSSSSYYYYSSSS
- SUBROUTINE CPOFA(A,LDA,N,INFO)
-
- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- On Entry
-
- AAAA COMPLEX(LDA, N)
- the Hermitian matrix to be factored. Only the
- diagonal and upper triangle are used.
-
- LLLLDDDDAAAA INTEGER
- the leading dimension of the array A .
-
- NNNN INTEGER
- the order of the matrix A . On Return
-
- AAAA an upper triangular matrix R so that A =
- CTRANS(R)*R where CTRANS(R) is the conjugate
- transpose. The strict lower triangle is unaltered.
- If INFO .NE. 0 , the factorization is not complete.
-
- IIIINNNNFFFFOOOO INTEGER
- = 0 for normal return.
- = K signals an error condition. The leading minor
- of order K is not positive definite. LINPACK. This version dated
- 08/14/78 . Cleve Moler, University of New Mexico, Argonne National Lab.
- Subroutines and Functions BLAS CDOTC Fortran AIMAG,CMPLX,CONJG,REAL,SQRT
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- PPPPaaaaggggeeee 1111
-
-
-
-