Unable to perform assignment because the size of the left side is 1-by-1 and the size of the right side is 1-by-2.

I have this line of code

x = [1 2];
n = 3;
fx = zeros(1,n);
for i = 0:n
fx(:,i+1) = (((-1)^i).*(x.^(2*i+1)))/(factorial(2*i+1));
end
fx = sum(f

x);

im trying to get a vector as my result for my input x values but i keep getting an error message. i don't know how to fix it pls help

Answer 1

[David Hill]

Not sure what sum you are after

x = [1 2];
n = 3;
fx = zeros(n+1,size(x,2));
for i = 0:n
    fx(i+1,:) = (((-1)^i)*(x.^(2*i+1)))/(factorial(2*i+1));
end
fx1 = sum(fx);
fx2 = sum(fx,2);