for command display too much info

I have been messing with this code for about an hour now and I am really close to being done. My problem is in fprintf I believe. I just want the last line to display. Here is my code.

int = input('Enter a number between 1 and 25: ');
if (int<1)||(int>25)
    int = input('Invalid number enter another between 1 and 25: ');
end
fact = 1;
for i=int:-1:2;
    fact = fact *i;
    fprintf('The factoral of %g is %g\n',int,fact);
end

Also, I know there is a factoral command but my professor does not want us using it.

I have one more small thing that has been bugging me. We are supposed to ask the user if they are done and end the program if the user types y or Y. I'm just not sure how to get the program to identify a capital letter as well as lower case. I thought it would be something like this but it does not work.

done = input('Are you done? Type y for yes. ','s');
while done~='y'||done~='Y'

Thanks for any help everyone!

[Guillaume]

I'm not sure what the title of the question has got to do with your actual question.

Answer 1

[Guillaume]

There are many ways to do this, one possibility:

while true
  %your code here
  done = input('Are you done? Type y for yes. ','s');
  if done == 'y' || done == 'Y'
    break %terminate while loop
  end
end

If you don't like that while true you could also do:

done = 'N'; %so it goes through the loop at least once.
while done ~= 'y' && done ~= 'Y'
  %your code
  done = input('Are you done? Type y for yes. ','s');
end

Answer 2

[Image Analyst]

Close, but you need two while loops. One to ask if they want to do it again, and one to keep asking until they enter a valid number that is in the required range. Here, try this:

clc;
% Initialize some things.
int = -1;
done = 'n';
% Loop over asking if they want to continue.
% Enter loop if done is not 'Y' or 'y'
while ~strcmpi(done, 'y') 
  % Loop over getting a valid (in range) number.
  while (int<1)||(int>25)
    int = round(input('Enter a number between 1 and 25: '));
    if (int<1)||(int>25)
      int = input('Invalid number enter another between 1 and 25: ');
    end
  end
  fact = 1;
  for k = int : -1 : 2;
    fact = fact * k;
  end
  fprintf('The factorial of %g is %g\n',int,fact);
  done = input('Are you done? Type y for yes, or n to continue: ','s');
  % Reset int so next time we'll ask again.
  int = -1;
end