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Question: an error in the power series solution

Question:an error in the power series solution

parvizs 0 Maple
error
August 07 2012
0

I have problem by serie solution Of maple I wanna to solve tehe following equation and the error happens I want to know whats this???

> sys := [s0*(diff(w1(x), [`$`(x, 4)]))+s1*(diff(w1(x), [`$`(x, 2)]))+s2*w1(x)+s3*(diff(f1(x), [`$`(x, 4)]))+s4*(diff(f1(x), [`$`(x, 2)]))+s5*f1(x)+s6*(diff(f1(x), [`$`(x, 1)]))*(diff(w1(x), [`$`(x, 1)])) = 0, t0*(diff(f1(x), [`$`(x, 4)]))+t1*Nx+t2*f1(x)+t3*(diff(w1(x), [`$`(x, 4)]))+t4*(diff(w1(x), [`$`(x, 2)]))+t5*w1(x)+t6*(diff(f1(x), [`$`(x, 1)]))^2 = 0];
> vars := [w1(x), f1(x)];
> X := [x];
> SeriesSolution(sys, vars, X)
Error, (in LinearFunctionalSystems:-Properties) For the list input type: the number of argument is two

thanks for your helps
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