.TH "SRC/zlargv.f" 3 "Version 3.12.0" "LAPACK" \" -*- nroff -*-
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.SH NAME
SRC/zlargv.f
.SH SYNOPSIS
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.PP
.SS "Functions/Subroutines"

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.ti -1c
.RI "subroutine \fBzlargv\fP (n, x, incx, y, incy, c, incc)"
.br
.RI "\fBZLARGV\fP generates a vector of plane rotations with real cosines and complex sines\&. "
.in -1c
.SH "Function/Subroutine Documentation"
.PP 
.SS "subroutine zlargv (integer n, complex*16, dimension( * ) x, integer incx, complex*16, dimension( * ) y, integer incy, double precision, dimension( * ) c, integer incc)"

.PP
\fBZLARGV\fP generates a vector of plane rotations with real cosines and complex sines\&.  
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\fBPurpose:\fP
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.nf
!>
!> 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) ) = ( r(i) )
!>    ( -conjg(s(i))  c(i) ) ( y(i) ) = (   0  )
!>
!>    where c(i)**2 + ABS(s(i))**2 = 1
!>
!> The following conventions are used (these are the same as in ZLARTG,
!> but differ from the BLAS1 routine ZROTG):
!>    If y(i)=0, then c(i)=1 and s(i)=0\&.
!>    If x(i)=0, then c(i)=0 and s(i) is chosen so that r(i) is real\&.
!> 
.fi
.PP
 
.RE
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\fBParameters\fP
.RS 4
\fIN\fP 
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!>          N is INTEGER
!>          The number of plane rotations to be generated\&.
!> 
.fi
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.br
\fIX\fP 
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!>          X is COMPLEX*16 array, dimension (1+(N-1)*INCX)
!>          On entry, the vector x\&.
!>          On exit, x(i) is overwritten by r(i), for i = 1,\&.\&.\&.,n\&.
!> 
.fi
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.br
\fIINCX\fP 
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!>          INCX is INTEGER
!>          The increment between elements of X\&. INCX > 0\&.
!> 
.fi
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\fIY\fP 
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!>          Y is COMPLEX*16 array, dimension (1+(N-1)*INCY)
!>          On entry, the vector y\&.
!>          On exit, the sines of the plane rotations\&.
!> 
.fi
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\fIINCY\fP 
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!>          INCY is INTEGER
!>          The increment between elements of Y\&. INCY > 0\&.
!> 
.fi
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\fIC\fP 
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!>          C is DOUBLE PRECISION array, dimension (1+(N-1)*INCC)
!>          The cosines of the plane rotations\&.
!> 
.fi
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\fIINCC\fP 
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!>          INCC is INTEGER
!>          The increment between elements of C\&. INCC > 0\&.
!> 
.fi
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.RE
.PP
\fBAuthor\fP
.RS 4
Univ\&. of Tennessee 

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Univ\&. of California Berkeley 

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Univ\&. of Colorado Denver 

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NAG Ltd\&. 
.RE
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\fBFurther Details:\fP
.RS 4

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!>
!>  6-6-96 - Modified with a new algorithm by W\&. Kahan and J\&. Demmel
!>
!>  This version has a few statements commented out for thread safety
!>  (machine parameters are computed on each entry)\&. 10 feb 03, SJH\&.
!> 
.fi
.PP
 
.RE
.PP

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Definition at line \fB121\fP of file \fBzlargv\&.f\fP\&.
.SH "Author"
.PP 
Generated automatically by Doxygen for LAPACK from the source code\&.