.TH "TESTING/LIN/cspt02.f" 3 "Version 3.12.0" "LAPACK" \" -*- nroff -*-
.ad l
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.SH NAME
TESTING/LIN/cspt02.f
.SH SYNOPSIS
.br
.PP
.SS "Functions/Subroutines"

.in +1c
.ti -1c
.RI "subroutine \fBcspt02\fP (uplo, n, nrhs, a, x, ldx, b, ldb, rwork, resid)"
.br
.RI "\fBCSPT02\fP "
.in -1c
.SH "Function/Subroutine Documentation"
.PP 
.SS "subroutine cspt02 (character uplo, integer n, integer nrhs, complex, dimension( * ) a, complex, dimension( ldx, * ) x, integer ldx, complex, dimension( ldb, * ) b, integer ldb, real, dimension( * ) rwork, real resid)"

.PP
\fBCSPT02\fP 
.PP
\fBPurpose:\fP
.RS 4

.PP
.nf
 CSPT02 computes the residual in the solution of a complex symmetric
 system of linear equations  A*x = b  when packed storage is used for
 the coefficient matrix\&.  The ratio computed is

    RESID = norm( B - A*X ) / ( norm(A) * norm(X) * EPS)\&.

 where EPS is the machine precision\&.
.fi
.PP
 
.RE
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\fBParameters\fP
.RS 4
\fIUPLO\fP 
.PP
.nf
          UPLO is CHARACTER*1
          Specifies whether the upper or lower triangular part of the
          complex symmetric matrix A is stored:
          = 'U':  Upper triangular
          = 'L':  Lower triangular
.fi
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.br
\fIN\fP 
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.nf
          N is INTEGER
          The number of rows and columns of the matrix A\&.  N >= 0\&.
.fi
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.br
\fINRHS\fP 
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.nf
          NRHS is INTEGER
          The number of columns of B, the matrix of right hand sides\&.
          NRHS >= 0\&.
.fi
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.br
\fIA\fP 
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.nf
          A is COMPLEX array, dimension (N*(N+1)/2)
          The original complex symmetric matrix A, stored as a packed
          triangular matrix\&.
.fi
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.br
\fIX\fP 
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.nf
          X is COMPLEX array, dimension (LDX,NRHS)
          The computed solution vectors for the system of linear
          equations\&.
.fi
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\fILDX\fP 
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.nf
          LDX is INTEGER
          The leading dimension of the array X\&.   LDX >= max(1,N)\&.
.fi
.PP
.br
\fIB\fP 
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.nf
          B is COMPLEX array, dimension (LDB,NRHS)
          On entry, the right hand side vectors for the system of
          linear equations\&.
          On exit, B is overwritten with the difference B - A*X\&.
.fi
.PP
.br
\fILDB\fP 
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.nf
          LDB is INTEGER
          The leading dimension of the array B\&.  LDB >= max(1,N)\&.
.fi
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\fIRWORK\fP 
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.nf
          RWORK is REAL array, dimension (N)
.fi
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.br
\fIRESID\fP 
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.nf
          RESID is REAL
          The maximum over the number of right hand sides of
          norm(B - A*X) / ( norm(A) * norm(X) * 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 \fB121\fP of file \fBcspt02\&.f\fP\&.
.SH "Author"
.PP 
Generated automatically by Doxygen for LAPACK from the source code\&.