the error here in equalization an ordinary variable in symbolic the error in E and says:" Conversion to double from sym is not possible." wt can ii do???
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syms x;
syms y;
rt=[x y];
xloc=[1 2 4 5];
yloc=[23 45 67 44];
N=4;
noOfratios=6;
E=[ones(1,1),ones(1,1)]
%s=5*ones(1,length(N));
for i=1:N
di=rt-[xloc(i),yloc(i)]
E(i,1)=1./(abs(di).^2);
end
for i = 1:noOfratios
j = setdiff(1:noOfratios,i);
k(i,j)=E(i)/E(j);
end
for i = 1:noOfratios
j = setdiff(1:noOfratios,i);
c(i,j)=r(i,2)-k(i,j).*r(j,2);
di=[xloc(i)-xloc(j),yloc(i)-yloc(j)]
p(i,j)=(k(i,j).*(abs(di)))./(1-k(i,j).^2)
end
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답변 (1개)
Walter Roberson
2011년 4월 4일
Umm, exactly which line does it say it on?
And where did you get the idea that the single symbolic variable "r", which is never assigned a value, could be indexed at (i,2) and (j,2) at the Matlab level?
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Walter Roberson
2011년 4월 4일
Is there a point in doing the abs() before doing the .^2 ? Are you expecting imaginary values or only real values?
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