DLARTV
November 2006
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) )
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.
|