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.