Write two functions (must be titled facW and facF respectively) in MATLAB that takes an integer x as input, and then calculate and display its factorial. You must not use any built-in function for factorial. For facW you must use the while loop and for facF you must use the for loop.

I have the for function here:

function fac=facF((x)

fac=1;

for i=1:x

fac=fac*i

end