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- DDDDGGGGBBBBDDDDIIII((((3333FFFF)))) DDDDGGGGBBBBDDDDIIII((((3333FFFF))))
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- NNNNAAAAMMMMEEEE
- DGBDI - DGBDI computes the determinant of a band matrix using the
- factors computed by DGBCO or DGBFA. If the inverse is needed, use DGBSL
- N times.
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- SSSSYYYYNNNNOOOOPPPPSSSSYYYYSSSS
- SUBROUTINE DGBDI(ABD,LDA,N,ML,MU,IPVT,DET)
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- On Entry
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- AAAABBBBDDDD DOUBLE PRECISION(LDA, N)
- the output from DGBCO or DGBFA.
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- LLLLDDDDAAAA INTEGER
- the leading dimension of the array ABD .
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- NNNN INTEGER
- the order of the original matrix.
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- MMMMLLLL INTEGER
- number of diagonals below the main diagonal.
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- MMMMUUUU INTEGER
- number of diagonals above the main diagonal.
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- IIIIPPPPVVVVTTTT INTEGER(N)
- the pivot vector from DGBCO or DGBFA. On Return
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- DDDDEEEETTTT DOUBLE PRECISION(2)
- determinant of original matrix.
- Determinant = DET(1) * 10.0**DET(2)
- with 1.0 .LE. DABS(DET(1)) .LT. 10.0
- or DET(1) = 0.0 . LINPACK. This version dated 08/14/78 . Cleve
- Moler, University of New Mexico, Argonne National Lab. Subroutines and
- Functions Fortran DABS
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- PPPPaaaaggggeeee 1111
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