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## org.netlib.lapack
Class Sorgtr

    java.lang.Object
      org.netlib.lapack.Sorgtr

    public class Sorgtr

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
     *  =======
     *
     *  SORGTR generates a real orthogonal matrix Q which is defined as the
     *  product of n-1 elementary reflectors of order N, as returned by
     *  SSYTRD:
     *
     *  if UPLO = 'U', Q = H(n-1) . . . H(2) H(1),
     *
     *  if UPLO = 'L', Q = H(1) H(2) . . . H(n-1).
     *
     *  Arguments
     *  =========
     *
     *  UPLO    (input) CHARACTER*1
     *          = 'U': Upper triangle of A contains elementary reflectors
     *                 from SSYTRD;
     *          = 'L': Lower triangle of A contains elementary reflectors
     *                 from SSYTRD.
     *
     *  N       (input) INTEGER
     *          The order of the matrix Q. N >= 0.
     *
     *  A       (input/output) REAL array, dimension (LDA,N)
     *          On entry, the vectors which define the elementary reflectors,
     *          as returned by SSYTRD.
     *          On exit, the N-by-N orthogonal matrix Q.
     *
     *  LDA     (input) INTEGER
     *          The leading dimension of the array A. LDA >= max(1,N).
     *
     *  TAU     (input) REAL array, dimension (N-1)
     *          TAU(i) must contain the scalar factor of the elementary
     *          reflector H(i), as returned by SSYTRD.
     *
     *  WORK    (workspace/output) REAL array, dimension (MAX(1,LWORK))
     *          On exit, if INFO = 0, WORK(1) returns the optimal LWORK.
     *
     *  LWORK   (input) INTEGER
     *          The dimension of the array WORK. LWORK >= max(1,N-1).
     *          For optimum performance LWORK >= (N-1)*NB, where NB is
     *          the optimal blocksize.
     *
     *          If LWORK = -1, then a workspace query is assumed; the routine
     *          only calculates the optimal size of the WORK array, returns
     *          this value as the first entry of the WORK array, and no error
     *          message related to LWORK is issued by XERBLA.
     *
     *  INFO    (output) INTEGER
     *          = 0:  successful exit
     *          < 0:  if INFO = -i, the i-th argument had an illegal value
     *
     *  =====================================================================
     *
     *     .. Parameters ..

Constructor Summary
`Sorgtr()`

Method Summary
`static void` | `sorgtr(java.lang.String uplo, int n, float[] a, int _a_offset, int lda, float[] tau, int _tau_offset, float[] work, int _work_offset, int lwork, intW info)`

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

Constructor Detail

### Sorgtr

    public Sorgtr()

Method Detail

### sorgtr

    public static void sorgtr(java.lang.String uplo,
                              int n,
                              float[] a,
                              int _a_offset,
                              int lda,
                              float[] tau,
                              int _tau_offset,
                              float[] work,
                              int _work_offset,
                              int lwork,
                              intW info)

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