Help with for loop and indexing

for k=1:length(x1)
q= l.*(x_prime).^2;

j= 110.*(x1-8);

i= 3.*(x_prime);

if x1(k) >= 0 && x1(k) <= 8
   x_double_prime = (n-q)./z;
else
   x_double_prime= (n-q-j-i)./z;
end
end

This is the for loop I have and recieved this feedback from professor: In addition to use the x1 index to check one element at a time from the x1 array, please also use each index of the x_prime to compute q and i and the x1 index to compute j. The x_double_prime in the for loop also needs an index to sav eone element at a time.

Can someone please help me with here request not understanding exactly what to do. Thank you in advance.

Answer 1

[madhan ravi]

I am not sure exactly what you want but

it should be with an index

x_prime(k)

and

x_double_prime(k)