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- SSSSSSSSPPPPSSSSLLLL((((3333FFFF)))) SSSSSSSSPPPPSSSSLLLL((((3333FFFF))))
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- NNNNAAAAMMMMEEEE
- SSPSL - SSISL solves the real symmetric system A * X = B using the
- factors computed by SSPFA.
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- SSSSYYYYNNNNOOOOPPPPSSSSYYYYSSSS
- SUBROUTINE SSPSL(AP,N,KPVT,B)
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- On Entry
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- AAAAPPPP REAL(N*(N+1)/2)
- the output from SSPFA.
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- NNNN INTEGER
- the order of the matrix A .
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- KKKKPPPPVVVVTTTT INTEGER(N)
- the pivot vector from SSPFA.
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- BBBB REAL(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 may occur if SSPCO has set RCOND .EQ. 0.0 or SSPFA
- has set INFO .NE. 0 . To compute INVERSE(A) * C where C is a matrix
- with P columns
- CALL SSPFA(AP,N,KPVT,INFO)
- IF (INFO .NE. 0) GO TO ...
- DO 10 J = 1, P
- CALL SSPSL(AP,N,KPVT,C(1,J)) 10 CONTINUE LINPACK. This version dated
- 08/14/78 . James Bunch, Univ. Calif. San Diego, Argonne Nat. Lab.
- Subroutines and Functions BLAS SAXPY,SDOT Fortran IABS
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- PPPPaaaaggggeeee 1111
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