.TH "TESTING/LIN/cspt03.f" 3 "Version 3.12.0" "LAPACK" \" -*- nroff -*-
.ad l
.nh
.SH NAME
TESTING/LIN/cspt03.f
.SH SYNOPSIS
.br
.PP
.SS "Functions/Subroutines"

.in +1c
.ti -1c
.RI "subroutine \fBcspt03\fP (uplo, n, a, ainv, work, ldw, rwork, rcond, resid)"
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.RI "\fBCSPT03\fP "
.in -1c
.SH "Function/Subroutine Documentation"
.PP 
.SS "subroutine cspt03 (character uplo, integer n, complex, dimension( * ) a, complex, dimension( * ) ainv, complex, dimension( ldw, * ) work, integer ldw, real, dimension( * ) rwork, real rcond, real resid)"

.PP
\fBCSPT03\fP 
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\fBPurpose:\fP
.RS 4

.PP
.nf
 CSPT03 computes the residual for a complex symmetric packed matrix
 times its inverse:
    norm( I - A*AINV ) / ( N * norm(A) * norm(AINV) * EPS ),
 where EPS is the machine epsilon\&.
.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
.PP
.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
\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
\fIAINV\fP 
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.nf
          AINV is COMPLEX array, dimension (N*(N+1)/2)
          The (symmetric) inverse of the matrix A, stored as a packed
          triangular matrix\&.
.fi
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\fIWORK\fP 
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.nf
          WORK is COMPLEX array, dimension (LDW,N)
.fi
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.br
\fILDW\fP 
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.nf
          LDW is INTEGER
          The leading dimension of the array WORK\&.  LDW >= max(1,N)\&.
.fi
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\fIRWORK\fP 
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.nf
          RWORK is REAL array, dimension (N)
.fi
.PP
.br
\fIRCOND\fP 
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.nf
          RCOND is REAL
          The reciprocal of the condition number of A, computed as
          ( 1/norm(A) ) / norm(AINV)\&.
.fi
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.br
\fIRESID\fP 
.PP
.nf
          RESID is REAL
          norm(I - A*AINV) / ( N * norm(A) * norm(AINV) * EPS )
.fi
.PP
 
.RE
.PP
\fBAuthor\fP
.RS 4
Univ\&. of Tennessee 
.PP
Univ\&. of California Berkeley 
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Univ\&. of Colorado Denver 
.PP
NAG Ltd\&. 
.RE
.PP

.PP
Definition at line \fB108\fP of file \fBcspt03\&.f\fP\&.
.SH "Author"
.PP 
Generated automatically by Doxygen for LAPACK from the source code\&.