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man pages->IRIX man pages -> complib/zlargv (3)
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### Contents

```
ZLARGV(3F)							    ZLARGV(3F)

```

### NAME[Toc][Back]

```     ZLARGV - generate a vector	of complex plane rotations with	real cosines,
determined	by elements of the complex vectors x and y
```

### SYNOPSIS[Toc][Back]

```     SUBROUTINE	ZLARGV(	N, X, INCX, Y, INCY, C,	INCC )

INTEGER	INCC, INCX, INCY, N

DOUBLE		PRECISION C( * )

COMPLEX*16	X( * ),	Y( * )
```

### PURPOSE[Toc][Back]

```     ZLARGV generates a	vector of complex plane	rotations with real cosines,
determined	by elements of the complex vectors x and y.  For i = 1,2,...,n

(	 c(i)	s(i) ) ( x(i) )	= ( a(i) )
( -conjg(s(i))	c(i) ) ( y(i) )	= (   0	 )

```

### ARGUMENTS[Toc][Back]

```     N	     (input) INTEGER
The number	of plane rotations to be generated.

X	     (input/output) COMPLEX*16 array, dimension	(1+(N-1)*INCX)
On	entry, the vector x.  On exit, x(i) is overwritten by a(i),
for i = 1,...,n.

INCX    (input) INTEGER
The increment between elements of X. INCX > 0.

Y	     (input/output) COMPLEX*16 array, dimension	(1+(N-1)*INCY)
On	entry, the vector y.  On exit, the sines of the	plane
rotations.

INCY    (input) INTEGER
The increment between elements of Y. INCY > 0.

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

INCC    (input) INTEGER
The increment between elements of C. INCC > 0.
ZLARGV(3F)							    ZLARGV(3F)

```

### NAME[Toc][Back]

```     ZLARGV - generate a vector	of complex plane rotations with	real cosines,
determined	by elements of the complex vectors x and y
```

### SYNOPSIS[Toc][Back]

```     SUBROUTINE	ZLARGV(	N, X, INCX, Y, INCY, C,	INCC )

INTEGER	INCC, INCX, INCY, N

DOUBLE		PRECISION C( * )

COMPLEX*16	X( * ),	Y( * )
```

### PURPOSE[Toc][Back]

```     ZLARGV generates a	vector of complex plane	rotations with real cosines,
determined	by elements of the complex vectors x and y.  For i = 1,2,...,n

(	 c(i)	s(i) ) ( x(i) )	= ( a(i) )
( -conjg(s(i))	c(i) ) ( y(i) )	= (   0	 )

```

### ARGUMENTS[Toc][Back]

```     N	     (input) INTEGER
The number	of plane rotations to be generated.

X	     (input/output) COMPLEX*16 array, dimension	(1+(N-1)*INCX)
On	entry, the vector x.  On exit, x(i) is overwritten by a(i),
for i = 1,...,n.

INCX    (input) INTEGER
The increment between elements of X. INCX > 0.

Y	     (input/output) COMPLEX*16 array, dimension	(1+(N-1)*INCY)
On	entry, the vector y.  On exit, the sines of the	plane
rotations.

INCY    (input) INTEGER
The increment between elements of Y. INCY > 0.

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

INCC    (input) INTEGER
The increment between elements of C. INCC > 0.

PPPPaaaaggggeeee 1111```
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