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  • Committer: Bazaar Package Importer
  • Author(s): Torsten Werner
  • Date: 2002-03-21 16:57:43 UTC
  • Revision ID: james.westby@ubuntu.com-20020321165743-e9mv12c1tb1plztg
Tags: upstream-2.6
Import upstream version 2.6

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man/polynomials/ldiv.cat
 
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ldiv             Scilab Group             Scilab Function              ldiv
 
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NAME
 
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   ldiv - polynomial matrix long division
 
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CALLING SEQUENCE
 
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 [x]=ldiv(n,d,k) 
 
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PARAMETERS
 
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 n,d  : two real polynomial matrices
 
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 k    : integer
 
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DESCRIPTION
 
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   x=ldiv(n,d,k) gives the k first coefficients  of the long division of n
 
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  by d i.e.  the Taylor expansion of the rational matrix [nij(z)/dij(z)]
 
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  near infinity.
 
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   Coefficients of expansion of nij/dij are stored in   x((i-1)*n+k,j) 
 
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  k=1:n
 
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EXAMPLE
 
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 wss=ssrand(1,1,3);[a,b,c,d]=abcd(wss);
 
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 wtf=ss2tf(wss);
 
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 x1=ldiv(numer(wtf),denom(wtf),5)
 
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 x2=[c*b;c*a*b;c*a^2*b;c*a^3*b;c*a^4*b]
 
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 wssbis=markp2ss(x1',5,1,1);
 
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 wtfbis=clean(ss2tf(wssbis))
 
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 x3=ldiv(numer(wtfbis),denom(wtfbis),5)
 
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SEE ALSO
 
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   arl2, markp2ss, pdiv    
 
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