DLARGV - generate a vector of real plane rotations, deter­
       mined by elements of the real vectors x and y


SYNOPSIS

       SUBROUTINE DLARGV( N, X, INCX, Y, INCY, C, INCC )

           INTEGER        INCC, INCX, INCY, N

           DOUBLE         PRECISION C( * ), X( * ), Y( * )


PURPOSE

       DLARGV generates a vector of real plane rotations,  deter­
       mined  by  elements  of  the real vectors x and y. For i =
       1,2,...,n
          (  c(i)  s(i) ) ( x(i) ) = ( a(i) )
          ( -s(i)  c(i) ) ( y(i) ) = (   0  )


ARGUMENTS

       N       (input) INTEGER
               The number of plane rotations to be generated.

       X       (input/output) DOUBLE PRECISION array,
               dimension (1+(N-1)*INCX) On entry, the  vector  x.
               On  exit,  x(i)  is  overwritten  by a(i), for i =
               1,...,n.

       INCX    (input) INTEGER
               The increment between elements of X. INCX > 0.

       Y       (input/output) DOUBLE PRECISION array,
               dimension (1+(N-1)*INCY) On entry, the  vector  y.
               On exit, the sines of the plane rotations.

       INCY    (input) INTEGER
               The increment between elements of Y. INCY > 0.

       C       (output) DOUBLE PRECISION array, dimension
               (1+(N-1)*INCC)
               The cosines of the plane rotations.

       INCC    (input) INTEGER
               The increment between elements of C. INCC > 0.


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