CS60 Homework 11
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Due Nov 5th @ 1:00pm

C++!
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The task of this assignment is to make a complex number class.  We've
already covered the basic features of a complex number type, in this
homeowrk you must use object oriented methodologies to implement a
complex number object and a program that acts as a simple complex
number calculator which allows the user to input two complex numbers,
on operation to perform, and then prints the results.

Your complex number class must implement the following member
functions (my notation for a complex number is (x,y) == x + y*i)

default constructor with no arguments
constructor that takes two arguments (x, y)

function to set x and y
function to get x
function to get y

function to add two complexes
function to multiply two complexes

All of these member functions should be implemented such that the
following code should function properly:

int main() {
	complex a, b(1,0), c, d;

	a.set(1, 0);

	c.add(a, b);
	d.mul(a, b);

	cout << c.getx() << " + " << c.gety() << "i" << endl;
	cout << d.getx() << " + " << d.gety() << "i" << endl;
}

The above sample program (to be used for testing your complex number
class) should print:

2 + 0i
1 + 0i

The program you need to write should simply ask the user for the value
of one complex, the value of another, an operation to perform, and
then the result of the performed operation.  If the user enters '-1'
as the input to the real part of the first variable, the program
should exit.

Turnin
--------------------

turnin tag is 'hw11' and MUST include the code 'complex.cpp',
'complex.h' and 'hw11.cpp' minimally.  You must also create a
'Makefile' that manages your project, and a typescript showing
compilation and execution of your program (compilation must be with
-ansi -pedantic).

Sample Output
--------------------

[nurmi@localhost hw11]$ make clean
rm -f *.o *.a *~* hw11
[nurmi@localhost hw11]$ ls
Makefile     complex.cpp  complex.h    main.cpp     typescript
[nurmi@localhost hw11]$ make
g++ -ansi -pedantic  -I./  -c -o main.o main.cpp
g++ -ansi -pedantic  -I./  -c -o complex.o complex.cpp
making all
g++ main.o complex.o -o hw11 
[nurmi@localhost hw11]$ ./hw11
Enter real 1: 10
Enter imaginary 1: 1
Enter real 2: 10
Enter imaginary 2: 1
Enter operation (*, +): +
20 + 2i
Enter real 1: 500
Enter imaginary 1: 40
Enter real 2: 0
Enter imaginary 2: 0
Enter operation (*, +): +
500 + 40i
Enter real 1: 12
Enter imaginary 1: 11
Enter real 2: 3
Enter imaginary 2: 10
Enter operation (*, +): *
-74 + 153i
Enter real 1: 100
Enter imaginary 1: 43
Enter real 2: 1
Enter imaginary 2: 0
Enter operation (*, +): *
100 + 43i
Enter real 1: 0
Enter imaginary 1: 1
Enter real 2: 0
Enter imaginary 2: 1
Enter operation (*, +): *
-1 + 0i
Enter real 1: -1
[nurmi@localhost hw11]$ make clean
rm -f *.o *.a *~* hw11
[nurmi@localhost hw11]$