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dlartv

```
NAME
DLARTV - apply 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.
```