Write M file with while loop, which computes factorial of any x, (x=12).

Directions:

Define x=12, Start with some value of factorial say Fact=1; - while loop condition will be x > 1 - compute factorial by multiplying the number with Fact - Reduce number by 1 - Close the while loop - Display the Fact

This is what I have so far (it is incorrect):

x=12;

while x>1

fact = x*(x-1);

x=x-1

end

disp(fact);

Answer 1

[Ameer Hamza]

You need to update the value of factorial at each step by using its value from the previous step

x=12;
fact = 1;
while x>1
    fact = fact*x;
    x=x-1;
end
disp(fact);

[N/A]

thank you!

Answer 2

[Chenguang Yan]

f = 12;
x = f;
fact = x;
while x>1
    x = x-1;
    fact = fact*x;
end
disp(fact)
% 
assert(isequal(fact,factorial(f)))