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## org.netlib.lapack
Class DGTSV

    java.lang.Object
      org.netlib.lapack.DGTSV

    public class DGTSV

extends java.lang.Object

    DGTSV is a simplified interface to the JLAPACK routine dgtsv.
    This interface converts Java-style 2D row-major arrays into
    the 1D column-major linearized arrays expected by the lower
    level JLAPACK routines.  Using this interface also allows you
    to omit offset and leading dimension arguments.  However, because
    of these conversions, these routines will be slower than the low
    level ones.  Following is the description from the original Fortran
    source.  Contact seymour@cs.utk.edu with any questions.

     *     ..
     *
     *  Purpose
     *  =======
     *
     *  DGTSV  solves the equation
     *
     *     A*X = B,
     *
     *  where A is an n by n tridiagonal matrix, by Gaussian elimination with
     *  partial pivoting.
     *
     *  Note that the equation  A'*X = B  may be solved by interchanging the

     *  order of the arguments DU and DL.
     *
     *  Arguments
     *  =========
     *
     *  N       (input) INTEGER
     *          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/output) DOUBLE PRECISION array, dimension (N-1)
     *          On entry, DL must contain the (n-1) sub-diagonal elements of

     *          A.
     *
     *          On exit, DL is overwritten by the (n-2) elements of the
     *          second super-diagonal of the upper triangular matrix U from
     *          the LU factorization of A, in DL(1), ..., DL(n-2).
     *
     *  D       (input/output) DOUBLE PRECISION array, dimension (N)
     *          On entry, D must contain the diagonal elements of A.
     *
     *          On exit, D is overwritten by the n diagonal elements of U.
     *
     *  DU      (input/output) DOUBLE PRECISION array, dimension (N-1)
     *          On entry, DU must contain the (n-1) super-diagonal elements
     *          of A.
     *
     *          On exit, DU is overwritten by the (n-1) elements of the first
     *          super-diagonal of U.
     *
     *  B       (input/output) DOUBLE PRECISION array, dimension (LDB,NRHS)
     *          On entry, the N by NRHS matrix of right hand side matrix B.
     *          On exit, if INFO = 0, the N by NRHS solution matrix X.
     *
     *  LDB     (input) INTEGER
     *          The leading dimension of the array B.  LDB >= max(1,N).
     *
     *  INFO    (output) INTEGER
     *          = 0: successful exit
     *          < 0: if INFO = -i, the i-th argument had an illegal value
     *          > 0: if INFO = i, U(i,i) is exactly zero, and the solution
     *               has not been computed.  The factorization has not been
     *               completed unless i = N.
     *
     *  =====================================================================
     *
     *     .. Parameters ..

Constructor Summary
`DGTSV()`

Method Summary
`static void` | `DGTSV(int n, int nrhs, double[] dl, double[] d, double[] du, double[][] b, intW info)`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### DGTSV

    public DGTSV()

Method Detail

### DGTSV

    public static void DGTSV(int n,
                             int nrhs,
                             double[] dl,
                             double[] d,
                             double[] du,
                             double[][] b,
                             intW info)

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