Afactorial is the product of all the integers from 1 to n. for example, 5 factorial is: 1*2*3*4*5. even though matlab has a built-in function to calculate factorials, create a function called fact (on same script) to calculate the factorial of any given number. the fact function will receive the integer number from the script and will return the result. you must use an appropriate loop to calculate the factorial. you must generate the integer number in the script, randomly (must use a random function, not just hardcoding a number).