DPTSL(3F)DPTSL(3F)NAMEDPTSL - DPTSL, given a positive definite symmetric tridiagonal matrix
and a right hand side, will find the solution.
SYNOPSYS
SUBROUTINE DPTSL(N,D,E,B)
DESCRIPTION
On Entry
N INTEGER
is the order of the tridiagonal matrix.
D DOUBLE PRECISION(N)
is the diagonal of the tridiagonal matrix.
On output D is destroyed.
E DOUBLE PRECISION(N)
is the offdiagonal of the tridiagonal matrix.
E(1) through E(N-1) should contain the
offdiagonal.
B DOUBLE PRECISION(N)
is the right hand side vector. On Return
B contains the solution. LINPACK. This version dated 08/14/78 . Jack
Dongarra, Argonne National Laboratory. No externals Fortran MOD
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