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Scilab manual >> Scilab > rational

rational

Scilab オブジェクト, Scilabの有理数

説明

有理数 r は,2つの多項式の商r=num/denです. 有理数の内部表現はリストです. r=tlist('['r','num','den','dt'],num,den,[])r=num/denと同じです. 有理行列は通常の構文で定義できます. 例えば, [r11,r12;r21,r22]は 2x2 行列です. ただし, rij は 1x1 有理数です. 有理行列は, num および denを多項式行列として リストtlist(['r','num','den','dt'],num,den,[])により 定義することも可能です.

s=poly(0,'s');
W=[1/s,1/(s+1)]
W'*W
Num=[s,s+2;1,s];Den=[s*s,s;s,s*s];
tlist(['r','num','den','dt'],Num,Den,[])
H=Num./Den
syslin('c',Num,Den)
syslin('c',H)
[Num1,Den1]=simp(Num,Den)
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