lab4 - CSC 113 Fall 2010 Lab Assignment 4 1 Write a M ATLAB...

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Unformatted text preview: CSC 113, Fall 2010 Lab Assignment 4 1. Write a M ATLAB function file that computes the factorial of a positive integer. The factorial of an integer N is N ! = N ∗ (N − 1) ∗ (N − 2) ∗ · · · ∗ 2 ∗ 1 For example, 5! = 5 ∗ 4 ∗ 3 ∗ 2 ∗ 1 = 120 and, by convention, 0! = 1. Your program should: • Accept a single input scalar. • Check to see if the input is non-negative and integer valued. If not, send an error message to the user and exit the program. • If the input is valid, compute its factorial and return the value as the function’s output. Do not use the M ATLAB factorial function in your program. The progrm might, however, take advantage of the M ATLAB prod function (type help prod at the command prompt). 2. Write a M ATLAB function that accepts as its input a scalar value for age, and prints out a message stating the privileges that go with the age: • If the age is 16 or larger, the person can legally obtain a driver’s license. • If the age is 18 or larger, the person is legally eligible to vote, and can legally sign contracts, but might also be drafted. • If the age is 21 or larger, the person can drink. • If the age is 25 or larger, the person is allowed to rent a car. • If the age is 45, the person is entitled to a midlife crisis. • If the person is less than 16, display “Sorry, you’ll have to wait.” The function should list all the privileges applicable at a given age. ...
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