cdttrsv man page on DragonFly

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CDTTRSV ‐ solve one of the systems of equations L * X = B, L**T *
X = B, or L**H * X = B, SUBROUTINE CDTTRSV( UPLO, TRANS, N, NRHS,
DL, D, DU, B, LDB, INFO )
    CHARACTER UPLO, TRANS
    INTEGER INFO, LDB, N, NRHS
    COMPLEX  B( LDB, * ), D( * ), DL( * ), DU( * ) CDTTRSV solves
one of the systems of equations L * X = B, L**T * X = B, or  L**H
* X = B,    U * X = B,	U**T * X = B,  or  U**H * X = B,
with  factors  of the tridiagonal matrix A from the LU factorization computed by CDTTRF.

UPLO	(input) CHARACTER*1 Specifies whether to solve with L  or
U.  TRANS   (input) CHARACTER Specifies the form of the system of
equations:
= ’N’:	A * X = B     (No transpose)
= ’T’:	A**T * X = B  (Transpose)
= ’C’:	A**H * X = B  (Conjugate transpose) N	    (input) INTE‐
GER  The order of the matrix A.	 N >= 0.  NRHS	  (input) INTEGER
The number of right hand sides, i.e., the number  of  columns  of
the  matrix B.	NRHS >= 0.  DL	    (input) COMPLEX array, dimen‐
sion (N‐1) The (n‐1) multipliers that define the  matrix  L  from
the LU factorization of A.  D	    (input) COMPLEX array, dimen‐
sion (N) The n diagonal elements of the upper triangular matrix U
from  the  LU factorization of A.  DU	   (input) COMPLEX array,
dimension (N‐1) The (n‐1) elements of the first superdiagonal  of
U.  B	    (input/output) COMPLEX array, dimension (LDB,NRHS) On
entry, the right hand side matrix B.  On exit, B  is  overwritten
by  the	 solution  matrix X.  LDB     (input) INTEGER The leading
dimension of the array B.  LDB >= max(1,N).  INFO    (output) IN‐
TEGER = 0:  successful exit
< 0:  if INFO = ‐i, the i‐th argument had an illegal value

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