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IRIX 6.2 Development Libraries
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SGI IRIX 6.2 Development Libraries.iso
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complib.idb
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SPTSL.z
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SPTSL
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1996-03-14
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1KB
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67 lines
SSSSPPPPTTTTSSSSLLLL((((3333FFFF)))) SSSSPPPPTTTTSSSSLLLL((((3333FFFF))))
NNNNAAAAMMMMEEEE
SPTSL - SPTSL given a positive definite tridiagonal matrix and a right
hand side will find the solution.
SSSSYYYYNNNNOOOOPPPPSSSSYYYYSSSS
SUBROUTINE SPTSL(N,D,E,B)
DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
On Entry
NNNN INTEGER
is the order of the tridiagonal matrix.
DDDD REAL(N)
is the diagonal of the tridiagonal matrix.
On output, D is destroyed.
EEEE REAL(N)
is the offdiagonal of the tridiagonal matrix.
E(1) through E(N-1) should contain the
offdiagonal.
BBBB REAL(N)
is the right hand side vector. On Return
BBBB contains the solution. LINPACK. This version dated 08/14/78 . Jack
Dongarra, Argonne National Laboratory. No externals Fortran MOD
PPPPaaaaggggeeee 1111