SLARGV(3)      LAPACK routine of NEC Numeric Library Collection      SLARGV(3)



NAME
       SLARGV

SYNOPSIS
       SUBROUTINE SLARGV (N, X, INCX, Y, INCY, C, INCC)



PURPOSE
            SLARGV generates a vector of real plane rotations, determined 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)
                     N is INTEGER
                     The number of plane rotations to be generated.

           X         (input/output)
                     X is REAL 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)
                     INCX is INTEGER
                     The increment between elements of X. INCX > 0.

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

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

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

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



LAPACK routine                  31 October 2017                      SLARGV(3)