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Scilab help >> Polynomials > ldiv

ldiv

多項式行列の長除算

呼び出し手順

[x]=ldiv(n,d,k)

パラメータ

n,d

実数多項式行列

k

整数

説明

x=ldiv(n,d,k) は, ndによる長除算の 最初のk個の係数を出力します. すなわち,有理行列[nij(z)/dij(z)]の無限大近傍での テイラー展開を出力します.

nij/dijの展開の係数は x((i-1)*n+k,j) k=1:nに保存されます

wss=ssrand(1,1,3);[a,b,c,d]=abcd(wss);
wtf=ss2tf(wss);
x1=ldiv(numer(wtf),denom(wtf),5)
x2=[c*b;c*a*b;c*a^2*b;c*a^3*b;c*a^4*b]
wssbis=markp2ss(x1',5,1,1);
wtfbis=clean(ss2tf(wssbis))
x3=ldiv(numer(wtfbis),denom(wtfbis),5)

参照

  • arl2 — L2伝達関数近似による SISO モデル実現
  • markp2ss — マルコフパラメータを状態空間に変換
  • pdiv — 多項式の除算
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Last updated:
Tue Apr 02 17:37:32 CEST 2013