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## org.netlib.lapack
Class Dpttrs

    java.lang.Object
      org.netlib.lapack.Dpttrs

    public class Dpttrs

extends java.lang.Object

    Following is the description from the original
    Fortran source.  For each array argument, the Java
    version will include an integer offset parameter, so
    the arguments may not match the description exactly.
    Contact seymour@cs.utk.edu with any questions.

     *     ..
     *
     *  Purpose
     *  =======
     *
     *  DPTTRS solves a tridiagonal system of the form
     *     A * X = B
     *  using the L*D*L' factorization of A computed by DPTTRF.  D is a
     *  diagonal matrix specified in the vector D, L is a unit bidiagonal
     *  matrix whose subdiagonal is specified in the vector E, and X and B
     *  are N by NRHS matrices.
     *
     *  Arguments
     *  =========
     *
     *  N       (input) INTEGER
     *          The order of the tridiagonal 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.
     *
     *  D       (input) DOUBLE PRECISION array, dimension (N)
     *          The n diagonal elements of the diagonal matrix D from the
     *          L*D*L' factorization of A.
     *
     *  E       (input) DOUBLE PRECISION array, dimension (N-1)
     *          The (n-1) subdiagonal elements of the unit bidiagonal factor

     *          L from the L*D*L' factorization of A.  E can also be regarded
     *          as the superdiagonal of the unit bidiagonal factor U from the
     *          factorization A = U'*D*U.
     *
     *  B       (input/output) DOUBLE PRECISION array, dimension (LDB,NRHS)
     *          On entry, the right hand side vectors B for the system of
     *          linear equations.
     *          On exit, the solution vectors, X.
     *
     *  LDB     (input) INTEGER
     *          The leading dimension of the array B.  LDB >= max(1,N).
     *
     *  INFO    (output) INTEGER
     *          = 0: successful exit
     *          < 0: if INFO = -k, the k-th argument had an illegal value
     *
     *  =====================================================================
     *
     *     .. Local Scalars ..

Constructor Summary
`Dpttrs()`

Method Summary
`static void` | `dpttrs(int n, int nrhs, double[] d, int _d_offset, double[] e, int _e_offset, double[] b, int _b_offset, int ldb, intW info)`

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

Constructor Detail

### Dpttrs

    public Dpttrs()

Method Detail

### dpttrs

    public static void dpttrs(int n,
                              int nrhs,
                              double[] d,
                              int _d_offset,
                              double[] e,
                              int _e_offset,
                              double[] b,
                              int _b_offset,
                              int ldb,
                              intW info)

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