.TH "syconvf" 3 "Version 3.12.0" "LAPACK" \" -*- nroff -*-
.ad l
.nh
.SH NAME
syconvf \- syconvf: convert to/from hetrf to hetrf_rk format
.SH SYNOPSIS
.br
.PP
.SS "Functions"

.in +1c
.ti -1c
.RI "subroutine \fBcsyconvf\fP (uplo, way, n, a, lda, e, ipiv, info)"
.br
.RI "\fBCSYCONVF\fP "
.ti -1c
.RI "subroutine \fBdsyconvf\fP (uplo, way, n, a, lda, e, ipiv, info)"
.br
.RI "\fBDSYCONVF\fP "
.ti -1c
.RI "subroutine \fBssyconvf\fP (uplo, way, n, a, lda, e, ipiv, info)"
.br
.RI "\fBSSYCONVF\fP "
.ti -1c
.RI "subroutine \fBzsyconvf\fP (uplo, way, n, a, lda, e, ipiv, info)"
.br
.RI "\fBZSYCONVF\fP "
.in -1c
.SH "Detailed Description"
.PP 

.SH "Function Documentation"
.PP 
.SS "subroutine csyconvf (character uplo, character way, integer n, complex, dimension( lda, * ) a, integer lda, complex, dimension( * ) e, integer, dimension( * ) ipiv, integer info)"

.PP
\fBCSYCONVF\fP  
.PP
\fBPurpose:\fP
.RS 4

.PP
.nf
!> If parameter WAY = 'C':
!> CSYCONVF converts the factorization output format used in
!> CSYTRF provided on entry in parameter A into the factorization
!> output format used in CSYTRF_RK (or CSYTRF_BK) that is stored
!> on exit in parameters A and E\&. It also converts in place details of
!> the interchanges stored in IPIV from the format used in CSYTRF into
!> the format used in CSYTRF_RK (or CSYTRF_BK)\&.
!>
!> If parameter WAY = 'R':
!> CSYCONVF performs the conversion in reverse direction, i\&.e\&.
!> converts the factorization output format used in CSYTRF_RK
!> (or CSYTRF_BK) provided on entry in parameters A and E into
!> the factorization output format used in CSYTRF that is stored
!> on exit in parameter A\&. It also converts in place details of
!> the interchanges stored in IPIV from the format used in CSYTRF_RK
!> (or CSYTRF_BK) into the format used in CSYTRF\&.
!>
!> CSYCONVF can also convert in Hermitian matrix case, i\&.e\&. between
!> formats used in CHETRF and CHETRF_RK (or CHETRF_BK)\&.
!> 
.fi
.PP
 
.RE
.PP
\fBParameters\fP
.RS 4
\fIUPLO\fP 
.PP
.nf
!>          UPLO is CHARACTER*1
!>          Specifies whether the details of the factorization are
!>          stored as an upper or lower triangular matrix A\&.
!>          = 'U':  Upper triangular
!>          = 'L':  Lower triangular
!> 
.fi
.PP
.br
\fIWAY\fP 
.PP
.nf
!>          WAY is CHARACTER*1
!>          = 'C': Convert
!>          = 'R': Revert
!> 
.fi
.PP
.br
\fIN\fP 
.PP
.nf
!>          N is INTEGER
!>          The order of the matrix A\&.  N >= 0\&.
!> 
.fi
.PP
.br
\fIA\fP 
.PP
.nf
!>          A is COMPLEX array, dimension (LDA,N)
!>
!>          1) If WAY ='C':
!>
!>          On entry, contains factorization details in format used in
!>          CSYTRF:
!>            a) all elements of the symmetric block diagonal
!>               matrix D on the diagonal of A and on superdiagonal
!>               (or subdiagonal) of A, and
!>            b) If UPLO = 'U': multipliers used to obtain factor U
!>               in the superdiagonal part of A\&.
!>               If UPLO = 'L': multipliers used to obtain factor L
!>               in the superdiagonal part of A\&.
!>
!>          On exit, contains factorization details in format used in
!>          CSYTRF_RK or CSYTRF_BK:
!>            a) ONLY diagonal elements of the symmetric block diagonal
!>               matrix D on the diagonal of A, i\&.e\&. D(k,k) = A(k,k);
!>               (superdiagonal (or subdiagonal) elements of D
!>                are stored on exit in array E), and
!>            b) If UPLO = 'U': factor U in the superdiagonal part of A\&.
!>               If UPLO = 'L': factor L in the subdiagonal part of A\&.
!>
!>          2) If WAY = 'R':
!>
!>          On entry, contains factorization details in format used in
!>          CSYTRF_RK or CSYTRF_BK:
!>            a) ONLY diagonal elements of the symmetric block diagonal
!>               matrix D on the diagonal of A, i\&.e\&. D(k,k) = A(k,k);
!>               (superdiagonal (or subdiagonal) elements of D
!>                are stored on exit in array E), and
!>            b) If UPLO = 'U': factor U in the superdiagonal part of A\&.
!>               If UPLO = 'L': factor L in the subdiagonal part of A\&.
!>
!>          On exit, contains factorization details in format used in
!>          CSYTRF:
!>            a) all elements of the symmetric block diagonal
!>               matrix D on the diagonal of A and on superdiagonal
!>               (or subdiagonal) of A, and
!>            b) If UPLO = 'U': multipliers used to obtain factor U
!>               in the superdiagonal part of A\&.
!>               If UPLO = 'L': multipliers used to obtain factor L
!>               in the superdiagonal part of A\&.
!> 
.fi
.PP
.br
\fILDA\fP 
.PP
.nf
!>          LDA is INTEGER
!>          The leading dimension of the array A\&.  LDA >= max(1,N)\&.
!> 
.fi
.PP
.br
\fIE\fP 
.PP
.nf
!>          E is COMPLEX array, dimension (N)
!>
!>          1) If WAY ='C':
!>
!>          On entry, just a workspace\&.
!>
!>          On exit, contains the superdiagonal (or subdiagonal)
!>          elements of the symmetric block diagonal matrix D
!>          with 1-by-1 or 2-by-2 diagonal blocks, where
!>          If UPLO = 'U': E(i) = D(i-1,i), i=2:N, E(1) is set to 0;
!>          If UPLO = 'L': E(i) = D(i+1,i), i=1:N-1, E(N) is set to 0\&.
!>
!>          2) If WAY = 'R':
!>
!>          On entry, contains the superdiagonal (or subdiagonal)
!>          elements of the symmetric block diagonal matrix D
!>          with 1-by-1 or 2-by-2 diagonal blocks, where
!>          If UPLO = 'U': E(i) = D(i-1,i),i=2:N, E(1) not referenced;
!>          If UPLO = 'L': E(i) = D(i+1,i),i=1:N-1, E(N) not referenced\&.
!>
!>          On exit, is not changed
!> 
.fi
.PP
 
.br
\fIIPIV\fP 
.PP
.nf
!>          IPIV is INTEGER array, dimension (N)
!>
!>          1) If WAY ='C':
!>          On entry, details of the interchanges and the block
!>          structure of D in the format used in CSYTRF\&.
!>          On exit, details of the interchanges and the block
!>          structure of D in the format used in CSYTRF_RK
!>          ( or CSYTRF_BK)\&.
!>
!>          1) If WAY ='R':
!>          On entry, details of the interchanges and the block
!>          structure of D in the format used in CSYTRF_RK
!>          ( or CSYTRF_BK)\&.
!>          On exit, details of the interchanges and the block
!>          structure of D in the format used in CSYTRF\&.
!> 
.fi
.PP
.br
\fIINFO\fP 
.PP
.nf
!>          INFO is INTEGER
!>          = 0:  successful exit
!>          < 0:  if INFO = -i, the i-th argument had an illegal value
!> 
.fi
.PP
 
.RE
.PP
\fBAuthor\fP
.RS 4
Univ\&. of Tennessee 

.PP
Univ\&. of California Berkeley 

.PP
Univ\&. of Colorado Denver 

.PP
NAG Ltd\&. 
.RE
.PP
\fBContributors:\fP
.RS 4

.PP
.nf
!>
!>  November 2017,  Igor Kozachenko,
!>                  Computer Science Division,
!>                  University of California, Berkeley
!>
!> 
.fi
.PP
 
.RE
.PP

.PP
Definition at line \fB208\fP of file \fBcsyconvf\&.f\fP\&.
.SS "subroutine dsyconvf (character uplo, character way, integer n, double precision, dimension( lda, * ) a, integer lda, double precision, dimension( * ) e, integer, dimension( * ) ipiv, integer info)"

.PP
\fBDSYCONVF\fP  
.PP
\fBPurpose:\fP
.RS 4

.PP
.nf
!> If parameter WAY = 'C':
!> DSYCONVF converts the factorization output format used in
!> DSYTRF provided on entry in parameter A into the factorization
!> output format used in DSYTRF_RK (or DSYTRF_BK) that is stored
!> on exit in parameters A and E\&. It also converts in place details of
!> the interchanges stored in IPIV from the format used in DSYTRF into
!> the format used in DSYTRF_RK (or DSYTRF_BK)\&.
!>
!> If parameter WAY = 'R':
!> DSYCONVF performs the conversion in reverse direction, i\&.e\&.
!> converts the factorization output format used in DSYTRF_RK
!> (or DSYTRF_BK) provided on entry in parameters A and E into
!> the factorization output format used in DSYTRF that is stored
!> on exit in parameter A\&. It also converts in place details of
!> the interchanges stored in IPIV from the format used in DSYTRF_RK
!> (or DSYTRF_BK) into the format used in DSYTRF\&.
!> 
.fi
.PP
 
.RE
.PP
\fBParameters\fP
.RS 4
\fIUPLO\fP 
.PP
.nf
!>          UPLO is CHARACTER*1
!>          Specifies whether the details of the factorization are
!>          stored as an upper or lower triangular matrix A\&.
!>          = 'U':  Upper triangular
!>          = 'L':  Lower triangular
!> 
.fi
.PP
.br
\fIWAY\fP 
.PP
.nf
!>          WAY is CHARACTER*1
!>          = 'C': Convert
!>          = 'R': Revert
!> 
.fi
.PP
.br
\fIN\fP 
.PP
.nf
!>          N is INTEGER
!>          The order of the matrix A\&.  N >= 0\&.
!> 
.fi
.PP
.br
\fIA\fP 
.PP
.nf
!>          A is DOUBLE PRECISION array, dimension (LDA,N)
!>
!>          1) If WAY ='C':
!>
!>          On entry, contains factorization details in format used in
!>          DSYTRF:
!>            a) all elements of the symmetric block diagonal
!>               matrix D on the diagonal of A and on superdiagonal
!>               (or subdiagonal) of A, and
!>            b) If UPLO = 'U': multipliers used to obtain factor U
!>               in the superdiagonal part of A\&.
!>               If UPLO = 'L': multipliers used to obtain factor L
!>               in the superdiagonal part of A\&.
!>
!>          On exit, contains factorization details in format used in
!>          DSYTRF_RK or DSYTRF_BK:
!>            a) ONLY diagonal elements of the symmetric block diagonal
!>               matrix D on the diagonal of A, i\&.e\&. D(k,k) = A(k,k);
!>               (superdiagonal (or subdiagonal) elements of D
!>                are stored on exit in array E), and
!>            b) If UPLO = 'U': factor U in the superdiagonal part of A\&.
!>               If UPLO = 'L': factor L in the subdiagonal part of A\&.
!>
!>          2) If WAY = 'R':
!>
!>          On entry, contains factorization details in format used in
!>          DSYTRF_RK or DSYTRF_BK:
!>            a) ONLY diagonal elements of the symmetric block diagonal
!>               matrix D on the diagonal of A, i\&.e\&. D(k,k) = A(k,k);
!>               (superdiagonal (or subdiagonal) elements of D
!>                are stored on exit in array E), and
!>            b) If UPLO = 'U': factor U in the superdiagonal part of A\&.
!>               If UPLO = 'L': factor L in the subdiagonal part of A\&.
!>
!>          On exit, contains factorization details in format used in
!>          DSYTRF:
!>            a) all elements of the symmetric block diagonal
!>               matrix D on the diagonal of A and on superdiagonal
!>               (or subdiagonal) of A, and
!>            b) If UPLO = 'U': multipliers used to obtain factor U
!>               in the superdiagonal part of A\&.
!>               If UPLO = 'L': multipliers used to obtain factor L
!>               in the superdiagonal part of A\&.
!> 
.fi
.PP
.br
\fILDA\fP 
.PP
.nf
!>          LDA is INTEGER
!>          The leading dimension of the array A\&.  LDA >= max(1,N)\&.
!> 
.fi
.PP
.br
\fIE\fP 
.PP
.nf
!>          E is DOUBLE PRECISION array, dimension (N)
!>
!>          1) If WAY ='C':
!>
!>          On entry, just a workspace\&.
!>
!>          On exit, contains the superdiagonal (or subdiagonal)
!>          elements of the symmetric block diagonal matrix D
!>          with 1-by-1 or 2-by-2 diagonal blocks, where
!>          If UPLO = 'U': E(i) = D(i-1,i), i=2:N, E(1) is set to 0;
!>          If UPLO = 'L': E(i) = D(i+1,i), i=1:N-1, E(N) is set to 0\&.
!>
!>          2) If WAY = 'R':
!>
!>          On entry, contains the superdiagonal (or subdiagonal)
!>          elements of the symmetric block diagonal matrix D
!>          with 1-by-1 or 2-by-2 diagonal blocks, where
!>          If UPLO = 'U': E(i) = D(i-1,i),i=2:N, E(1) not referenced;
!>          If UPLO = 'L': E(i) = D(i+1,i),i=1:N-1, E(N) not referenced\&.
!>
!>          On exit, is not changed
!> 
.fi
.PP
 
.br
\fIIPIV\fP 
.PP
.nf
!>          IPIV is INTEGER array, dimension (N)
!>
!>          1) If WAY ='C':
!>          On entry, details of the interchanges and the block
!>          structure of D in the format used in DSYTRF\&.
!>          On exit, details of the interchanges and the block
!>          structure of D in the format used in DSYTRF_RK
!>          ( or DSYTRF_BK)\&.
!>
!>          1) If WAY ='R':
!>          On entry, details of the interchanges and the block
!>          structure of D in the format used in DSYTRF_RK
!>          ( or DSYTRF_BK)\&.
!>          On exit, details of the interchanges and the block
!>          structure of D in the format used in DSYTRF\&.
!> 
.fi
.PP
.br
\fIINFO\fP 
.PP
.nf
!>          INFO is INTEGER
!>          = 0:  successful exit
!>          < 0:  if INFO = -i, the i-th argument had an illegal value
!> 
.fi
.PP
 
.RE
.PP
\fBAuthor\fP
.RS 4
Univ\&. of Tennessee 

.PP
Univ\&. of California Berkeley 

.PP
Univ\&. of Colorado Denver 

.PP
NAG Ltd\&. 
.RE
.PP
\fBContributors:\fP
.RS 4

.PP
.nf
!>
!>  November 2017,  Igor Kozachenko,
!>                  Computer Science Division,
!>                  University of California, Berkeley
!>
!> 
.fi
.PP
 
.RE
.PP

.PP
Definition at line \fB205\fP of file \fBdsyconvf\&.f\fP\&.
.SS "subroutine ssyconvf (character uplo, character way, integer n, real, dimension( lda, * ) a, integer lda, real, dimension( * ) e, integer, dimension( * ) ipiv, integer info)"

.PP
\fBSSYCONVF\fP  
.PP
\fBPurpose:\fP
.RS 4

.PP
.nf
!> If parameter WAY = 'C':
!> SSYCONVF converts the factorization output format used in
!> SSYTRF provided on entry in parameter A into the factorization
!> output format used in SSYTRF_RK (or SSYTRF_BK) that is stored
!> on exit in parameters A and E\&. It also converts in place details of
!> the interchanges stored in IPIV from the format used in SSYTRF into
!> the format used in SSYTRF_RK (or SSYTRF_BK)\&.
!>
!> If parameter WAY = 'R':
!> SSYCONVF performs the conversion in reverse direction, i\&.e\&.
!> converts the factorization output format used in SSYTRF_RK
!> (or SSYTRF_BK) provided on entry in parameters A and E into
!> the factorization output format used in SSYTRF that is stored
!> on exit in parameter A\&. It also converts in place details of
!> the interchanges stored in IPIV from the format used in SSYTRF_RK
!> (or SSYTRF_BK) into the format used in SSYTRF\&.
!> 
.fi
.PP
 
.RE
.PP
\fBParameters\fP
.RS 4
\fIUPLO\fP 
.PP
.nf
!>          UPLO is CHARACTER*1
!>          Specifies whether the details of the factorization are
!>          stored as an upper or lower triangular matrix A\&.
!>          = 'U':  Upper triangular
!>          = 'L':  Lower triangular
!> 
.fi
.PP
.br
\fIWAY\fP 
.PP
.nf
!>          WAY is CHARACTER*1
!>          = 'C': Convert
!>          = 'R': Revert
!> 
.fi
.PP
.br
\fIN\fP 
.PP
.nf
!>          N is INTEGER
!>          The order of the matrix A\&.  N >= 0\&.
!> 
.fi
.PP
.br
\fIA\fP 
.PP
.nf
!>          A is REAL array, dimension (LDA,N)
!>
!>          1) If WAY ='C':
!>
!>          On entry, contains factorization details in format used in
!>          SSYTRF:
!>            a) all elements of the symmetric block diagonal
!>               matrix D on the diagonal of A and on superdiagonal
!>               (or subdiagonal) of A, and
!>            b) If UPLO = 'U': multipliers used to obtain factor U
!>               in the superdiagonal part of A\&.
!>               If UPLO = 'L': multipliers used to obtain factor L
!>               in the superdiagonal part of A\&.
!>
!>          On exit, contains factorization details in format used in
!>          SSYTRF_RK or SSYTRF_BK:
!>            a) ONLY diagonal elements of the symmetric block diagonal
!>               matrix D on the diagonal of A, i\&.e\&. D(k,k) = A(k,k);
!>               (superdiagonal (or subdiagonal) elements of D
!>                are stored on exit in array E), and
!>            b) If UPLO = 'U': factor U in the superdiagonal part of A\&.
!>               If UPLO = 'L': factor L in the subdiagonal part of A\&.
!>
!>          2) If WAY = 'R':
!>
!>          On entry, contains factorization details in format used in
!>          SSYTRF_RK or SSYTRF_BK:
!>            a) ONLY diagonal elements of the symmetric block diagonal
!>               matrix D on the diagonal of A, i\&.e\&. D(k,k) = A(k,k);
!>               (superdiagonal (or subdiagonal) elements of D
!>                are stored on exit in array E), and
!>            b) If UPLO = 'U': factor U in the superdiagonal part of A\&.
!>               If UPLO = 'L': factor L in the subdiagonal part of A\&.
!>
!>          On exit, contains factorization details in format used in
!>          SSYTRF:
!>            a) all elements of the symmetric block diagonal
!>               matrix D on the diagonal of A and on superdiagonal
!>               (or subdiagonal) of A, and
!>            b) If UPLO = 'U': multipliers used to obtain factor U
!>               in the superdiagonal part of A\&.
!>               If UPLO = 'L': multipliers used to obtain factor L
!>               in the superdiagonal part of A\&.
!> 
.fi
.PP
.br
\fILDA\fP 
.PP
.nf
!>          LDA is INTEGER
!>          The leading dimension of the array A\&.  LDA >= max(1,N)\&.
!> 
.fi
.PP
.br
\fIE\fP 
.PP
.nf
!>          E is REAL array, dimension (N)
!>
!>          1) If WAY ='C':
!>
!>          On entry, just a workspace\&.
!>
!>          On exit, contains the superdiagonal (or subdiagonal)
!>          elements of the symmetric block diagonal matrix D
!>          with 1-by-1 or 2-by-2 diagonal blocks, where
!>          If UPLO = 'U': E(i) = D(i-1,i), i=2:N, E(1) is set to 0;
!>          If UPLO = 'L': E(i) = D(i+1,i), i=1:N-1, E(N) is set to 0\&.
!>
!>          2) If WAY = 'R':
!>
!>          On entry, contains the superdiagonal (or subdiagonal)
!>          elements of the symmetric block diagonal matrix D
!>          with 1-by-1 or 2-by-2 diagonal blocks, where
!>          If UPLO = 'U': E(i) = D(i-1,i),i=2:N, E(1) not referenced;
!>          If UPLO = 'L': E(i) = D(i+1,i),i=1:N-1, E(N) not referenced\&.
!>
!>          On exit, is not changed
!> 
.fi
.PP
 
.br
\fIIPIV\fP 
.PP
.nf
!>          IPIV is INTEGER array, dimension (N)
!>
!>          1) If WAY ='C':
!>          On entry, details of the interchanges and the block
!>          structure of D in the format used in SSYTRF\&.
!>          On exit, details of the interchanges and the block
!>          structure of D in the format used in SSYTRF_RK
!>          ( or SSYTRF_BK)\&.
!>
!>          1) If WAY ='R':
!>          On entry, details of the interchanges and the block
!>          structure of D in the format used in SSYTRF_RK
!>          ( or SSYTRF_BK)\&.
!>          On exit, details of the interchanges and the block
!>          structure of D in the format used in SSYTRF\&.
!> 
.fi
.PP
.br
\fIINFO\fP 
.PP
.nf
!>          INFO is INTEGER
!>          = 0:  successful exit
!>          < 0:  if INFO = -i, the i-th argument had an illegal value
!> 
.fi
.PP
 
.RE
.PP
\fBAuthor\fP
.RS 4
Univ\&. of Tennessee 

.PP
Univ\&. of California Berkeley 

.PP
Univ\&. of Colorado Denver 

.PP
NAG Ltd\&. 
.RE
.PP
\fBContributors:\fP
.RS 4

.PP
.nf
!>
!>  November 2017,  Igor Kozachenko,
!>                  Computer Science Division,
!>                  University of California, Berkeley
!>
!> 
.fi
.PP
 
.RE
.PP

.PP
Definition at line \fB205\fP of file \fBssyconvf\&.f\fP\&.
.SS "subroutine zsyconvf (character uplo, character way, integer n, complex*16, dimension( lda, * ) a, integer lda, complex*16, dimension( * ) e, integer, dimension( * ) ipiv, integer info)"

.PP
\fBZSYCONVF\fP  
.PP
\fBPurpose:\fP
.RS 4

.PP
.nf
!> If parameter WAY = 'C':
!> ZSYCONVF converts the factorization output format used in
!> ZSYTRF provided on entry in parameter A into the factorization
!> output format used in ZSYTRF_RK (or ZSYTRF_BK) that is stored
!> on exit in parameters A and E\&. It also converts in place details of
!> the interchanges stored in IPIV from the format used in ZSYTRF into
!> the format used in ZSYTRF_RK (or ZSYTRF_BK)\&.
!>
!> If parameter WAY = 'R':
!> ZSYCONVF performs the conversion in reverse direction, i\&.e\&.
!> converts the factorization output format used in ZSYTRF_RK
!> (or ZSYTRF_BK) provided on entry in parameters A and E into
!> the factorization output format used in ZSYTRF that is stored
!> on exit in parameter A\&. It also converts in place details of
!> the interchanges stored in IPIV from the format used in ZSYTRF_RK
!> (or ZSYTRF_BK) into the format used in ZSYTRF\&.
!>
!> ZSYCONVF can also convert in Hermitian matrix case, i\&.e\&. between
!> formats used in ZHETRF and ZHETRF_RK (or ZHETRF_BK)\&.
!> 
.fi
.PP
 
.RE
.PP
\fBParameters\fP
.RS 4
\fIUPLO\fP 
.PP
.nf
!>          UPLO is CHARACTER*1
!>          Specifies whether the details of the factorization are
!>          stored as an upper or lower triangular matrix A\&.
!>          = 'U':  Upper triangular
!>          = 'L':  Lower triangular
!> 
.fi
.PP
.br
\fIWAY\fP 
.PP
.nf
!>          WAY is CHARACTER*1
!>          = 'C': Convert
!>          = 'R': Revert
!> 
.fi
.PP
.br
\fIN\fP 
.PP
.nf
!>          N is INTEGER
!>          The order of the matrix A\&.  N >= 0\&.
!> 
.fi
.PP
.br
\fIA\fP 
.PP
.nf
!>          A is COMPLEX*16 array, dimension (LDA,N)
!>
!>          1) If WAY ='C':
!>
!>          On entry, contains factorization details in format used in
!>          ZSYTRF:
!>            a) all elements of the symmetric block diagonal
!>               matrix D on the diagonal of A and on superdiagonal
!>               (or subdiagonal) of A, and
!>            b) If UPLO = 'U': multipliers used to obtain factor U
!>               in the superdiagonal part of A\&.
!>               If UPLO = 'L': multipliers used to obtain factor L
!>               in the superdiagonal part of A\&.
!>
!>          On exit, contains factorization details in format used in
!>          ZSYTRF_RK or ZSYTRF_BK:
!>            a) ONLY diagonal elements of the symmetric block diagonal
!>               matrix D on the diagonal of A, i\&.e\&. D(k,k) = A(k,k);
!>               (superdiagonal (or subdiagonal) elements of D
!>                are stored on exit in array E), and
!>            b) If UPLO = 'U': factor U in the superdiagonal part of A\&.
!>               If UPLO = 'L': factor L in the subdiagonal part of A\&.
!>
!>          2) If WAY = 'R':
!>
!>          On entry, contains factorization details in format used in
!>          ZSYTRF_RK or ZSYTRF_BK:
!>            a) ONLY diagonal elements of the symmetric block diagonal
!>               matrix D on the diagonal of A, i\&.e\&. D(k,k) = A(k,k);
!>               (superdiagonal (or subdiagonal) elements of D
!>                are stored on exit in array E), and
!>            b) If UPLO = 'U': factor U in the superdiagonal part of A\&.
!>               If UPLO = 'L': factor L in the subdiagonal part of A\&.
!>
!>          On exit, contains factorization details in format used in
!>          ZSYTRF:
!>            a) all elements of the symmetric block diagonal
!>               matrix D on the diagonal of A and on superdiagonal
!>               (or subdiagonal) of A, and
!>            b) If UPLO = 'U': multipliers used to obtain factor U
!>               in the superdiagonal part of A\&.
!>               If UPLO = 'L': multipliers used to obtain factor L
!>               in the superdiagonal part of A\&.
!> 
.fi
.PP
.br
\fILDA\fP 
.PP
.nf
!>          LDA is INTEGER
!>          The leading dimension of the array A\&.  LDA >= max(1,N)\&.
!> 
.fi
.PP
.br
\fIE\fP 
.PP
.nf
!>          E is COMPLEX*16 array, dimension (N)
!>
!>          1) If WAY ='C':
!>
!>          On entry, just a workspace\&.
!>
!>          On exit, contains the superdiagonal (or subdiagonal)
!>          elements of the symmetric block diagonal matrix D
!>          with 1-by-1 or 2-by-2 diagonal blocks, where
!>          If UPLO = 'U': E(i) = D(i-1,i), i=2:N, E(1) is set to 0;
!>          If UPLO = 'L': E(i) = D(i+1,i), i=1:N-1, E(N) is set to 0\&.
!>
!>          2) If WAY = 'R':
!>
!>          On entry, contains the superdiagonal (or subdiagonal)
!>          elements of the symmetric block diagonal matrix D
!>          with 1-by-1 or 2-by-2 diagonal blocks, where
!>          If UPLO = 'U': E(i) = D(i-1,i),i=2:N, E(1) not referenced;
!>          If UPLO = 'L': E(i) = D(i+1,i),i=1:N-1, E(N) not referenced\&.
!>
!>          On exit, is not changed
!> 
.fi
.PP
 
.br
\fIIPIV\fP 
.PP
.nf
!>          IPIV is INTEGER array, dimension (N)
!>
!>          1) If WAY ='C':
!>          On entry, details of the interchanges and the block
!>          structure of D in the format used in ZSYTRF\&.
!>          On exit, details of the interchanges and the block
!>          structure of D in the format used in ZSYTRF_RK
!>          ( or ZSYTRF_BK)\&.
!>
!>          1) If WAY ='R':
!>          On entry, details of the interchanges and the block
!>          structure of D in the format used in ZSYTRF_RK
!>          ( or ZSYTRF_BK)\&.
!>          On exit, details of the interchanges and the block
!>          structure of D in the format used in ZSYTRF\&.
!> 
.fi
.PP
.br
\fIINFO\fP 
.PP
.nf
!>          INFO is INTEGER
!>          = 0:  successful exit
!>          < 0:  if INFO = -i, the i-th argument had an illegal value
!> 
.fi
.PP
 
.RE
.PP
\fBAuthor\fP
.RS 4
Univ\&. of Tennessee 

.PP
Univ\&. of California Berkeley 

.PP
Univ\&. of Colorado Denver 

.PP
NAG Ltd\&. 
.RE
.PP
\fBContributors:\fP
.RS 4

.PP
.nf
!>
!>  November 2017,  Igor Kozachenko,
!>                  Computer Science Division,
!>                  University of California, Berkeley
!>
!> 
.fi
.PP
 
.RE
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.PP
Definition at line \fB208\fP of file \fBzsyconvf\&.f\fP\&.
.SH "Author"
.PP 
Generated automatically by Doxygen for LAPACK from the source code\&.