LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ clartv()

subroutine clartv ( integer  n,
complex, dimension( * )  x,
integer  incx,
complex, dimension( * )  y,
integer  incy,
real, dimension( * )  c,
complex, dimension( * )  s,
integer  incc 
)

CLARTV applies a vector of plane rotations with real cosines and complex sines to the elements of a pair of vectors.

Download CLARTV + dependencies [TGZ] [ZIP] [TXT]

Purpose:
 CLARTV applies a vector of complex plane rotations with real cosines
 to elements of the complex vectors x and y. For i = 1,2,...,n

    ( x(i) ) := (        c(i)   s(i) ) ( x(i) )
    ( y(i) )    ( -conjg(s(i))  c(i) ) ( y(i) )
Parameters
[in]N
          N is INTEGER
          The number of plane rotations to be applied.
[in,out]X
          X is COMPLEX array, dimension (1+(N-1)*INCX)
          The vector x.
[in]INCX
          INCX is INTEGER
          The increment between elements of X. INCX > 0.
[in,out]Y
          Y is COMPLEX array, dimension (1+(N-1)*INCY)
          The vector y.
[in]INCY
          INCY is INTEGER
          The increment between elements of Y. INCY > 0.
[in]C
          C is REAL array, dimension (1+(N-1)*INCC)
          The cosines of the plane rotations.
[in]S
          S is COMPLEX array, dimension (1+(N-1)*INCC)
          The sines of the plane rotations.
[in]INCC
          INCC is INTEGER
          The increment between elements of C and S. INCC > 0.
Author
Univ. of Tennessee
Univ. of California Berkeley
Univ. of Colorado Denver
NAG Ltd.