How do I display squares of all even integers from zero to some positive integer input by the the user.And the program must continuously request a number from the user untill a valid a positive integer is entered

My code so far: M=input(enter integer) for c=0:m if (mod(m,2)==0) disp(m*m) end end

Answer 1

[Rafael Hernandez-Walls]

M=input('enter integer:');
for c=0:M 
    if mod(c,2)==0 
        c^2 
    end 
end