.TH "cungl2.f" 3 "Wed Oct 15 2014" "Version 3.4.2" "LAPACK" \" -*- nroff -*-
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.SH NAME
cungl2.f \- 
.SH SYNOPSIS
.br
.PP
.SS "Functions/Subroutines"

.in +1c
.ti -1c
.RI "subroutine \fBcungl2\fP (M, N, K, A, LDA, TAU, WORK, INFO)"
.br
.RI "\fI\fBCUNGL2\fP generates all or part of the unitary matrix Q from an LQ factorization determined by cgelqf (unblocked algorithm)\&. \fP"
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.SH "Function/Subroutine Documentation"
.PP 
.SS "subroutine cungl2 (integerM, integerN, integerK, complex, dimension( lda, * )A, integerLDA, complex, dimension( * )TAU, complex, dimension( * )WORK, integerINFO)"

.PP
\fBCUNGL2\fP generates all or part of the unitary matrix Q from an LQ factorization determined by cgelqf (unblocked algorithm)\&.  
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\fBPurpose: \fP
.RS 4

.PP
.nf
 CUNGL2 generates an m-by-n complex matrix Q with orthonormal rows,
 which is defined as the first m rows of a product of k elementary
 reflectors of order n

       Q  =  H(k)**H . . . H(2)**H H(1)**H

 as returned by CGELQF.
.fi
.PP
 
.RE
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\fBParameters:\fP
.RS 4
\fIM\fP 
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.nf
          M is INTEGER
          The number of rows of the matrix Q. M >= 0.
.fi
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\fIN\fP 
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          N is INTEGER
          The number of columns of the matrix Q. N >= M.
.fi
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\fIK\fP 
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          K is INTEGER
          The number of elementary reflectors whose product defines the
          matrix Q. M >= K >= 0.
.fi
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\fIA\fP 
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          A is COMPLEX array, dimension (LDA,N)
          On entry, the i-th row must contain the vector which defines
          the elementary reflector H(i), for i = 1,2,...,k, as returned
          by CGELQF in the first k rows of its array argument A.
          On exit, the m by n matrix Q.
.fi
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\fILDA\fP 
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          LDA is INTEGER
          The first dimension of the array A. LDA >= max(1,M).
.fi
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.br
\fITAU\fP 
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          TAU is COMPLEX array, dimension (K)
          TAU(i) must contain the scalar factor of the elementary
          reflector H(i), as returned by CGELQF.
.fi
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\fIWORK\fP 
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          WORK is COMPLEX array, dimension (M)
.fi
.PP
.br
\fIINFO\fP 
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          INFO is INTEGER
          = 0: successful exit
          < 0: if INFO = -i, the i-th argument has an illegal value
.fi
.PP
 
.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
.RS 4
September 2012 
.RE
.PP

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Definition at line 114 of file cungl2\&.f\&.
.SH "Author"
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Generated automatically by Doxygen for LAPACK from the source code\&.