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Question: Coefficients of a multivariable polynomial in a vector or variable

Question:Coefficients of a multivariable polynomial in a vector or variable

Sayed 15 Maple
polynomial coefficients
July 04 2020
2

Hi dears

Just a simple question: I am trying to restore the coefficients of a polynomial in a vector, respect to a list of variables. For example

f:=a*u[]*u[1]*u[2]+b*u[1]*u[2]+c*v[]*v[1]*u[2]+d*u[]*v[1]*v[2]+d*u[]*v[1]*u[2]+f*u[]*v[];
    f := a u[] u[1] u[2] + c u[2] v[] v[1] + d u[] u[2] v[1] + d u[] v[1] v[2] + b u[1] u[2]+fu[]v[]
collect(f,{u[1],u[2],v[1],v[2]},distributed);
       (a u[] + b) u[1] u[2] + (c v[] + d u[]) u[2] v[1] + d u[] v[1] v[2]+fu[]v[]

 

in above example I intend to keep (a u[] + b) and (c v[] + d u[]) and d and fu[]v[] in a vector or a varieble. Is there any comments?

Thanks indeed in advence
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