please i want to calculate sum of E generated (i.e 1 to 5). i try it but the last E generated is showing as Etotal

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Philip
Philip 2013-8-12
xm=100; ym=100;
sink.x=0.5*xm; sink.y=0.5*ym;
n=5;
PL =20;
TX=4;
Efs=10;
for j=1:1:n
S(j).xd=rand(1,1)*xm;
S(j).yd=rand(1,1)*ym;
distance=sqrt((S(j).xd-sink.x)^2 + (S(j).yd-sink.y)^2);
E=PL*(TX+Efs*(sqrt(distance)^2));% this is a formula
Etotal=sum(E)
end

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Friedrich
Friedrich 2013-8-12
Hi,
without having a close look I guess the last line should be:
Etotal = Etotal + sum(E)
Also declare Etotal to be 0 before your for loop.

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