.TH "TESTING/LIN/sppt03.f" 3 "Version 3.12.0" "LAPACK" \" -*- nroff -*-
.ad l
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.SH NAME
TESTING/LIN/sppt03.f
.SH SYNOPSIS
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.PP
.SS "Functions/Subroutines"

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.ti -1c
.RI "subroutine \fBsppt03\fP (uplo, n, a, ainv, work, ldwork, rwork, rcond, resid)"
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.RI "\fBSPPT03\fP "
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.SH "Function/Subroutine Documentation"
.PP 
.SS "subroutine sppt03 (character uplo, integer n, real, dimension( * ) a, real, dimension( * ) ainv, real, dimension( ldwork, * ) work, integer ldwork, real, dimension( * ) rwork, real rcond, real resid)"

.PP
\fBSPPT03\fP 
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\fBPurpose:\fP
.RS 4

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.nf
 SPPT03 computes the residual for a symmetric packed matrix times its
 inverse:
    norm( I - A*AINV ) / ( N * norm(A) * norm(AINV) * EPS ),
 where EPS is the machine epsilon\&.
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.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
          symmetric matrix A is stored:
          = 'U':  Upper triangular
          = 'L':  Lower triangular
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\fIN\fP 
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.nf
          N is INTEGER
          The number of rows and columns of the matrix A\&.  N >= 0\&.
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\fIA\fP 
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          A is REAL array, dimension (N*(N+1)/2)
          The original symmetric matrix A, stored as a packed
          triangular matrix\&.
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\fIAINV\fP 
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.nf
          AINV is REAL array, dimension (N*(N+1)/2)
          The (symmetric) inverse of the matrix A, stored as a packed
          triangular matrix\&.
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\fIWORK\fP 
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          WORK is REAL array, dimension (LDWORK,N)
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\fILDWORK\fP 
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          LDWORK is INTEGER
          The leading dimension of the array WORK\&.  LDWORK >= max(1,N)\&.
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\fIRWORK\fP 
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          RWORK is REAL array, dimension (N)
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\fIRCOND\fP 
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          RCOND is REAL
          The reciprocal of the condition number of A, computed as
          ( 1/norm(A) ) / norm(AINV)\&.
.fi
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\fIRESID\fP 
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.nf
          RESID is REAL
          norm(I - A*AINV) / ( N * norm(A) * norm(AINV) * EPS )
.fi
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.RE
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\fBAuthor\fP
.RS 4
Univ\&. of Tennessee 
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Univ\&. of California Berkeley 
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Univ\&. of Colorado Denver 
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NAG Ltd\&. 
.RE
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Definition at line \fB108\fP of file \fBsppt03\&.f\fP\&.
.SH "Author"
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Generated automatically by Doxygen for LAPACK from the source code\&.