How can a teacher answer this ?

Write a program that will display the result of n! using a loop. For example, if the user enters 5 for n, the program should display “factorial of is 120”.

[Thomas Nguyen]

function[] = factorial()
n=input('Enter value n: ');
fac=1;
for i=1:n
  fac=fac*i;
end
disp(['The factorial of ',num2str(n),' is: ',num2str(fac)])
end%factorial()