I'm trying to plot x vs y,saving the values in arrays:

clear all;

l = 0.1;

for index = 1:30;

x(index) = (index-1)*0.1;

y(index) = pi*(x.^2 + 1).^2 *l;

end

%PLOT x VERSUS y

plot(x,y);

xlabel('x');

ylabel('pi*((x^2+1)^2)*l');

But I'm getting this error: In an assignment A(I) = B, the number of elements in B and I must be the same.

Error in problem_02 (line 8) y(index) = pi*(x.^2 + 1).^2 *l;

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