File: parrot.man

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.TH parrot 1 "April 1993" "Scilab Group" "Scilab Function"
.so ../sci.an
.SH NAME
parrot - Parrot's problem
.SH CALLING SEQUENCE
.nf
K=parrot(D,r)
.fi
.SH PARAMETERS
.TP 10
D,K
: matrices
.TP
r
: 1X2 vector (dimension of the 2,2 part of \fVD\fR)
.SH DESCRIPTION
Given a matrix \fVD\fR partionned as \fV[D11 D12; D21 D22]\fR
where \fVsize(D22)=r=[r1,r2]\fR
compute a matrix \fVK\fR such that
largest singular value of \fV[D11 D12; D21 D22+K]\fR
is minimal (Parrot's problem)
.SH SEE ALSO
h_inf_st