.TH "TESTING/LIN/dpot01.f" 3 "Version 3.12.0" "LAPACK" \" -*- nroff -*-
.ad l
.nh
.SH NAME
TESTING/LIN/dpot01.f
.SH SYNOPSIS
.br
.PP
.SS "Functions/Subroutines"

.in +1c
.ti -1c
.RI "subroutine \fBdpot01\fP (uplo, n, a, lda, afac, ldafac, rwork, resid)"
.br
.RI "\fBDPOT01\fP "
.in -1c
.SH "Function/Subroutine Documentation"
.PP 
.SS "subroutine dpot01 (character uplo, integer n, double precision, dimension( lda, * ) a, integer lda, double precision, dimension( ldafac, * ) afac, integer ldafac, double precision, dimension( * ) rwork, double precision resid)"

.PP
\fBDPOT01\fP 
.PP
\fBPurpose:\fP
.RS 4

.PP
.nf
 DPOT01 reconstructs a symmetric positive definite matrix  A  from
 its L*L' or U'*U factorization and computes the residual
    norm( L*L' - A ) / ( N * norm(A) * EPS ) or
    norm( U'*U - A ) / ( N * norm(A) * EPS ),
 where EPS is the machine epsilon\&.
.fi
.PP
 
.RE
.PP
\fBParameters\fP
.RS 4
\fIUPLO\fP 
.PP
.nf
          UPLO is CHARACTER*1
          Specifies whether the upper or lower triangular part of the
          symmetric matrix A is stored:
          = 'U':  Upper triangular
          = 'L':  Lower triangular
.fi
.PP
.br
\fIN\fP 
.PP
.nf
          N is INTEGER
          The number of rows and columns of the matrix A\&.  N >= 0\&.
.fi
.PP
.br
\fIA\fP 
.PP
.nf
          A is DOUBLE PRECISION array, dimension (LDA,N)
          The original symmetric matrix 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
\fIAFAC\fP 
.PP
.nf
          AFAC is DOUBLE PRECISION array, dimension (LDAFAC,N)
          On entry, the factor L or U from the L * L**T or U**T * U
          factorization of A\&.
          Overwritten with the reconstructed matrix, and then with
          the difference L * L**T - A (or U**T * U - A)\&.
.fi
.PP
.br
\fILDAFAC\fP 
.PP
.nf
          LDAFAC is INTEGER
          The leading dimension of the array AFAC\&.  LDAFAC >= max(1,N)\&.
.fi
.PP
.br
\fIRWORK\fP 
.PP
.nf
          RWORK is DOUBLE PRECISION array, dimension (N)
.fi
.PP
.br
\fIRESID\fP 
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.nf
          RESID is DOUBLE PRECISION
          If UPLO = 'L', norm(L * L**T - A) / ( N * norm(A) * EPS )
          If UPLO = 'U', norm(U**T * U - A) / ( N * norm(A) * EPS )
.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

.PP
Definition at line \fB103\fP of file \fBdpot01\&.f\fP\&.
.SH "Author"
.PP 
Generated automatically by Doxygen for LAPACK from the source code\&.