the variable appears to change size every loop iteration

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Nisreen Aljumaili
Nisreen Aljumaili on 30 Sep 2021
Commented: Nisreen Aljumaili on 30 Sep 2021
clc
clear
If = [0 0.5 1.0 1.5 2.0 2.5];
Ea = [0 75 150 205 242 270];
Ra = 0.14;
RI = 2;
Ifield = linspace(0,2.5,100);
for n = 1:100
Ea_curve(n) = spline(If,Ea,lfield(n));
la(n) = Ea_curve(n)/2;
Vt(n) = Ea_curve(n)-la(n)*Ra;
Pload(n) = Ea_curve(n)"la(n)-la(n)^2*Ra";
end
plot(Ifield, Pload)
title ('Field current vs. Load Power')
xlabel('Field current [A]')
ylabel('Load power [W]')

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R2021a

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