Scilab Reference Manual |
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ldiv — polynomial matrix long division
[x]=ldiv(n,d,k)
x=ldiv(n,d,k) gives the k first coefficients of the long division of n by d i.e. the Taylor expansion of the rational matrix [nij(z)/dij(z)] near infinity.
Coefficients of expansion of nij/dij are stored in x((i-1)*n+k,j) k=1:n
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)
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