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a=cell(1:2585,1);
b=cell(1:2585,2);
c=cell(1:2585,3);
d=cell(1:2585,4);
i=1
for i=1:2585
syms x
y=solve(a(i)*x^b(i)+c(i)*x+d(i)==0.2);
if y>0
digits(2)
yy(i)=double(y);
yyy=yy';
else
y=0;
yy(i)=double(y)
yyy=yy'
end
clc;
i=i+1
end
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