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  • Committer: Bazaar Package Importer
  • Author(s): Torsten Werner
  • Date: 2005-01-09 22:58:21 UTC
  • mfrom: (1.1.1 upstream)
  • Revision ID: james.westby@ubuntu.com-20050109225821-473xr8vhgugxxx5j
Tags: 3.0-12
http://bugs.debian.org/255869
changed configure.in to build scilab's own malloc.o, closes: #255869

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man/robust/hankelsv.man
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.TH hankelsv 1 "April 1993" "Scilab Group" "Scilab Function"
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.so ../sci.an
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.SH NAME
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hankelsv - Hankel singular values
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.SH CALLING SEQUENCE
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.nf
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[nk2,W]=hankelsv(sl [,tol])
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[nk2]=hankelsv(sl [,tol])
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.fi
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.SH PARAMETERS
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.TP 10
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sl
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: \fVsyslin\fR list representing the linear system (state-space).
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.TP
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tol
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: tolerance parameter for detecting imaginary axis modes
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(default value is \fV1000*%eps\fR).
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.SH DESCRIPTION
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returns \fVnk2\fR, the squared Hankel singular values of \fVsl\fR
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and \fVW = P*Q\fR = controllability gramian times observability
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gramian.
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.LP
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\fVnk2\fR is the vector of eigenvalues of \fVW\fR.
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.SH EXAMPLE
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.nf
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A=diag([-1,-2,-3]);
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sl=syslin('c',A,rand(3,2),rand(2,3));[nk2,W]=hankelsv(sl)
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[Q,M]=pbig(W,nk2(2)-%eps,'c');
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slr=projsl(sl,Q,M);hankelsv(slr)
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.fi
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.SH SEE ALSO
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balreal, equil, equil1 
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