.TH "TESTING/LIN/dget04.f" 3 "Version 3.12.0" "LAPACK" \" -*- nroff -*-
.ad l
.nh
.SH NAME
TESTING/LIN/dget04.f
.SH SYNOPSIS
.br
.PP
.SS "Functions/Subroutines"

.in +1c
.ti -1c
.RI "subroutine \fBdget04\fP (n, nrhs, x, ldx, xact, ldxact, rcond, resid)"
.br
.RI "\fBDGET04\fP "
.in -1c
.SH "Function/Subroutine Documentation"
.PP 
.SS "subroutine dget04 (integer n, integer nrhs, double precision, dimension( ldx, * ) x, integer ldx, double precision, dimension( ldxact, * ) xact, integer ldxact, double precision rcond, double precision resid)"

.PP
\fBDGET04\fP 
.PP
\fBPurpose:\fP
.RS 4

.PP
.nf
 DGET04 computes the difference between a computed solution and the
 true solution to a system of linear equations\&.

 RESID =  ( norm(X-XACT) * RCOND ) / ( norm(XACT) * EPS ),
 where RCOND is the reciprocal of the condition number and EPS is the
 machine epsilon\&.
.fi
.PP
 
.RE
.PP
\fBParameters\fP
.RS 4
\fIN\fP 
.PP
.nf
          N is INTEGER
          The number of rows of the matrices X and XACT\&.  N >= 0\&.
.fi
.PP
.br
\fINRHS\fP 
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.nf
          NRHS is INTEGER
          The number of columns of the matrices X and XACT\&.  NRHS >= 0\&.
.fi
.PP
.br
\fIX\fP 
.PP
.nf
          X is DOUBLE PRECISION array, dimension (LDX,NRHS)
          The computed solution vectors\&.  Each vector is stored as a
          column of the matrix X\&.
.fi
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.br
\fILDX\fP 
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.nf
          LDX is INTEGER
          The leading dimension of the array X\&.  LDX >= max(1,N)\&.
.fi
.PP
.br
\fIXACT\fP 
.PP
.nf
          XACT is DOUBLE PRECISION array, dimension( LDX, NRHS )
          The exact solution vectors\&.  Each vector is stored as a
          column of the matrix XACT\&.
.fi
.PP
.br
\fILDXACT\fP 
.PP
.nf
          LDXACT is INTEGER
          The leading dimension of the array XACT\&.  LDXACT >= max(1,N)\&.
.fi
.PP
.br
\fIRCOND\fP 
.PP
.nf
          RCOND is DOUBLE PRECISION
          The reciprocal of the condition number of the coefficient
          matrix in the system of equations\&.
.fi
.PP
.br
\fIRESID\fP 
.PP
.nf
          RESID is DOUBLE PRECISION
          The maximum over the NRHS solution vectors of
          ( norm(X-XACT) * RCOND ) / ( norm(XACT) * 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 \fB101\fP of file \fBdget04\&.f\fP\&.
.SH "Author"
.PP 
Generated automatically by Doxygen for LAPACK from the source code\&.