# dlartv.f

Section: LAPACK (3)
Updated: Tue Nov 14 2017
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dlartv.f

## SYNOPSIS

### Functions/Subroutines

subroutine dlartv (N, X, INCX, Y, INCY, C, S, INCC)
DLARTV applies a vector of plane rotations with real cosines and real sines to the elements of a pair of vectors.

## Function/Subroutine Documentation

### subroutine dlartv (integer N, double precision, dimension( * ) X, integer INCX, double precision, dimension( * ) Y, integer INCY, double precision, dimension( * ) C, double precision, dimension( * ) S, integer INCC)

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

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) )
```

Parameters:

N

```          N is INTEGER
The number of plane rotations to be applied.
```

X

```          X is DOUBLE PRECISION array,
dimension (1+(N-1)*INCX)
The vector x.
```

INCX

```          INCX is INTEGER
The increment between elements of X. INCX > 0.
```

Y

```          Y is DOUBLE PRECISION array,
dimension (1+(N-1)*INCY)
The vector y.
```

INCY

```          INCY is INTEGER
The increment between elements of Y. INCY > 0.
```

C

```          C is DOUBLE PRECISION array, dimension (1+(N-1)*INCC)
The cosines of the plane rotations.
```

S

```          S is DOUBLE PRECISION array, dimension (1+(N-1)*INCC)
The sines of the plane rotations.
```

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.

Date:

December 2016

Definition at line 110 of file dlartv.f.

## Author

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