Question

Write a MATLAB program to determine the factorial value of an input integer between 1 and 30. You may NOT use the built-in factorial function. You must implement it using a for loop. Display the result back to the user with 2 decimal places (yes, 2 decimal places). The result should follow the following format:   The factorial value is *.xx

Answer 1

function result = facto(x)

%this function will generate factorial of a given number

%the output of the given input will be as follows:

% x(x-1)(x-2)(x-3).....(3)(2)(1)

% also if x = 0 then the value is 1 and also x is +integer

%If statement to check if the number is negative

if x<0

result = 'Negative numbers are not valid for factorial'

% else if the number is not an integer then we will convert the number to

% integer and find the value of the factorial

elseif int64(x) ~= x

fprintf('You have entered a number which is not an integer\n');

fprintf('Please enter a valid integer to find the factorial\n');

elseif x == 0

result = 1;

  

else

result = 1;

for i = 1:x

result = result*i;

end

end