Essential C++

Exercise 4.5

Implement a 4x4 Matrix class supporting at least the following general interface: addition and multiplication of two Matrix objects, a print() member function, a compound += operator, and subscripting supported through a pair of overloaded function call operators, as follows:

					float& operator()( int row, int column );
					float  operator()( int row, int column ) const;
				

Provide a default constructor taking an optional 16 data values and a constructor taking an array of 16 elements. You do not need a copy constructor, copy assignment operator, or destructor for this class (these are required in Chapter 6 when we reimplement the Matrix class to support arbitrary rows and columns).

 #include <iostream> typedef float elemType; // for transition ...