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zlar2v (3)
  • >> zlar2v (3) ( Solaris man: Библиотечные вызовы )
  • 
    NAME
         zlar2v - apply a vector of complex plane rotations with real
         cosines from both sides to a sequence of 2-by-2 complex Her-
         mitian matrices,
    
    SYNOPSIS
         SUBROUTINE ZLAR2V( N, X, Y, Z, INCX, C, S, INCC )
    
         INTEGER INCC, INCX, N
    
         DOUBLE PRECISION C( * )
    
         COMPLEX*16 S( * ), X( * ), Y( * ), Z( * )
    
    
    
         #include <sunperf.h>
    
         void zlar2v(int n,  doublecomplex  *zx,  doublecomplex  *zy,
                   doublecomplex  *zz,  int  incx,  double *dc, doub-
                   lecomplex *s, int incc) ;
    
    PURPOSE
         ZLAR2V applies a vector of complex plane rotations with real
         cosines from both sides to a sequence of 2-by-2 complex Her-
         mitian matrices, defined by the elements of the vectors x, y
         and z. For i = 1,2,...,n
    
            (       x(i)  z(i) ) :=
            ( conjg(z(i)) y(i) )
    
              (  c(i) conjg(s(i)) ) (       x(i)  z(i) ) ( c(i) -conjg(s(i)) )
              ( -s(i)       c(i)  ) ( conjg(z(i)) y(i) ) ( s(i)        c(i)  )
    
    
    ARGUMENTS
         N         (input) INTEGER
                   The number of plane rotations to be applied.
    
         X         (input/output) COMPLEX*16 array, dimension  (1+(N-
                   1)*INCX)
                   The vector x; the elements of x are assumed to  be
                   real.
    
         Y         (input/output) COMPLEX*16 array, dimension  (1+(N-
                   1)*INCX)
                   The vector y; the elements of y are assumed to  be
                   real.
    
         Z         (input/output) COMPLEX*16 array, dimension  (1+(N-
                   1)*INCX)
                   The vector z.
    
         INCX      (input) INTEGER
                   The increment between elements of X, Y and Z. INCX
                   > 0.
    
         C         (input) DOUBLE PRECISION array,  dimension  (1+(N-
                   1)*INCC)
                   The cosines of the plane rotations.
    
         S         (input) COMPLEX*16 array, dimension (1+(N-1)*INCC)
                   The sines of the plane rotations.
    
         INCC      (input) INTEGER
                   The increment between elements of C and S. INCC  >
                   0.
    
    
    
    


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