.TH "zlargv.f" 3 "Wed Oct 15 2014" "Version 3.4.2" "LAPACK" \" -*- nroff -*-
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.SH NAME
zlargv.f \- 
.SH SYNOPSIS
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.SS "Functions/Subroutines"

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.ti -1c
.RI "subroutine \fBzlargv\fP (N, X, INCX, Y, INCY, C, INCC)"
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.RI "\fI\fBZLARGV\fP generates a vector of plane rotations with real cosines and complex sines\&. \fP"
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.SH "Function/Subroutine Documentation"
.PP 
.SS "subroutine zlargv (integerN, complex*16, dimension( * )X, integerINCX, complex*16, dimension( * )Y, integerINCY, double precision, dimension( * )C, integerINCC)"

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\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.
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.RE
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\fBParameters:\fP
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\fIN\fP 
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          N is INTEGER
          The number of plane rotations to be generated.
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\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.
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\fIINCX\fP 
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          INCX is INTEGER
          The increment between elements of X. INCX > 0.
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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.
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\fIINCY\fP 
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          INCY is INTEGER
          The increment between elements of Y. INCY > 0.
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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.
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\fIINCC\fP 
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          INCC is INTEGER
          The increment between elements of C. INCC > 0.
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.RE
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\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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\fBDate:\fP
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September 2012 
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\fBFurther Details: \fP
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.nf
  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.
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.RE
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Definition at line 123 of file zlargv\&.f\&.
.SH "Author"
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Generated automatically by Doxygen for LAPACK from the source code\&.