CSCI 1300 Quiz: 23 Jan 2007

1. What is the value of each expression in C++?
   Data types are int (if there is no decimal point)
   or double (if there is a decimal point):

   ANSWERS APPEAR AFTER EACH QUESTION
   A. 14 / 10 is 1
   B. 14 % 10 is 4
   C.  7 / 10 is 0
   D.  7 % 10 is 7
   E. 14.0 / 10.0 (two doubles) is 1.4
   F. 14.0 / 10   (one double, one int) is 1.4
   
2. Write an arithmetic expression in C++ for this
   one mathmatical expression that involves one
   addition (in the numerator), one division 
   and one multiplication (in the denominator):

        a + b
       -------  <<-- this is the division! 
         cd

   ANSWER:
   (a + b)/(c*d) Correct
   (a + b)/c*d   Incorrect
   (a + b)/cd    Incorrect


















// Put these three lines at the top of your main program
// so that every double number you print comes out with
// two digits after the decimal point.  (See page 320.)

cout.setf(ios::showpoint);
cout.setf(ios::fixed);
cout.setprecision(2);