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<HTML>
<HEAD><TITLE>IB01OY - SLICOT Library Routine Documentation</TITLE>
</HEAD>
<BODY>
<H2><A Name="IB01OY">IB01OY</A></H2>
<H3>
User's confirmation of the system order
</H3>
<A HREF ="#Specification"><B>[Specification]</B></A>
<A HREF ="#Arguments"><B>[Arguments]</B></A>
<A HREF ="#Method"><B>[Method]</B></A>
<A HREF ="#References"><B>[References]</B></A>
<A HREF ="#Comments"><B>[Comments]</B></A>
<A HREF ="#Example"><B>[Example]</B></A>
<P>
<B><FONT SIZE="+1">Purpose</FONT></B>
<PRE>
To ask for user's confirmation of the system order found by
SLICOT Library routine IB01OD. This routine may be modified,
but its interface must be preserved.
</PRE>
<A name="Specification"><B><FONT SIZE="+1">Specification</FONT></B></A>
<PRE>
SUBROUTINE IB01OY( NS, NMAX, N, SV, INFO )
C .. Scalar Arguments ..
INTEGER INFO, N, NMAX, NS
C .. Array Arguments ..
DOUBLE PRECISION SV( * )
</PRE>
<A name="Arguments"><B><FONT SIZE="+1">Arguments</FONT></B></A>
<P>
</PRE>
<B>Input/Output Parameters</B>
<PRE>
NS (input) INTEGER
The number of singular values. NS > 0.
NMAX (input) INTEGER
The maximum value of the system order. 0 <= NMAX <= NS.
N (input/output) INTEGER
On entry, the estimate of the system order computed by
IB01OD routine. 0 <= N <= NS.
On exit, the user's estimate of the system order, which
could be identical with the input value of N.
Note that the output value of N should be less than
or equal to NMAX.
SV (input) DOUBLE PRECISION array, dimension ( NS )
The singular values, in descending order, used for
determining the system order.
</PRE>
<B>Error Indicator</B>
<PRE>
INFO INTEGER
= 0: successful exit;
< 0: if INFO = -i, the i-th argument had an illegal
value.
</PRE>
<A name="Comments"><B><FONT SIZE="+1">Further Comments</FONT></B></A>
<PRE>
None
</PRE>
<A name="Example"><B><FONT SIZE="+1">Example</FONT></B></A>
<P>
<B>Program Text</B>
<PRE>
None
</PRE>
<B>Program Data</B>
<PRE>
None
</PRE>
<B>Program Results</B>
<PRE>
None
</PRE>
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