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- CCCCPPPPOOOOSSSSLLLL((((3333FFFF)))) CCCCPPPPOOOOSSSSLLLL((((3333FFFF))))
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- NNNNAAAAMMMMEEEE
- CPOSL - CPOSL solves the COMPLEX Hermitian positive definite system A *
- X = B using the factors computed by CPOCO or CPOFA.
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- SSSSYYYYNNNNOOOOPPPPSSSSYYYYSSSS
- SUBROUTINE CPOSL(A,LDA,N,B)
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- On Entry
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- AAAA COMPLEX(LDA, N)
- the output from CPOCO or CPOFA.
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- LLLLDDDDAAAA INTEGER
- the leading dimension of the array A .
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- NNNN INTEGER
- the order of the matrix A .
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- BBBB COMPLEX(N)
- the right hand side vector. On Return
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- BBBB the solution vector X . Error Condition
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- AAAA division by zero will occur if the input factor contains a zero on the
- diagonal. Technically this indicates singularity but it is usually
- caused by improper subroutine arguments. It will not occur if the
- subroutines are called correctly and INFO .EQ. 0 . To compute
- INVERSE(A) * C where C is a matrix with P columns
- CALL CPOCO(A,LDA,N,RCOND,Z,INFO)
- IF (RCOND is too small .OR. INFO .NE. 0) GO TO ...
- DO 10 J = 1, P
- CALL CPOSL(A,LDA,N,C(1,J)) 10 CONTINUE LINPACK. This version dated
- 08/14/78 . Cleve Moler, University of New Mexico, Argonne National Lab.
- Subroutines and Functions BLAS CAXPY,CDOTC
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- PPPPaaaaggggeeee 1111
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