dlartv (l) - Linux Man Pages

dlartv: applies a vector of real plane rotations to elements of the real vectors x and y

NAME

DLARTV - applies a vector of real plane rotations to elements of the real vectors x and y

SYNOPSIS

SUBROUTINE DLARTV(
N, X, INCX, Y, INCY, C, S, INCC )

    
INTEGER INCC, INCX, INCY, N

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

PURPOSE

DLARTV applies a vector of real plane rotations to elements of the real vectors x and y. For i = 1,2,...,n
x(i) :=  c(i)  s(i) x(i) )

y(i)    -s(i)  c(i) y(i) )

ARGUMENTS

N (input) INTEGER
The number of plane rotations to be applied.
X (input/output) DOUBLE PRECISION array,
dimension (1+(N-1)*INCX) The vector x.
INCX (input) INTEGER
The increment between elements of X. INCX > 0.
Y (input/output) DOUBLE PRECISION array,
dimension (1+(N-1)*INCY) The vector y.
INCY (input) INTEGER
The increment between elements of Y. INCY > 0.
C (input) DOUBLE PRECISION array, dimension (1+(N-1)*INCC)
The cosines of the plane rotations.
S (input) DOUBLE PRECISION 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.