To see a computer system from A+B (1)

Simple things come up and there will always be unexpected discoveries, and today we're going to talk about computing the addition of two numbers with a computer:

C language Just get started, will write this program (in order to focus on and a+b, here just show this function):

1 int  Add (int A,int  b)2{3     return a +b; 4 }

After a period of time to see this program, feel the original did not consider the decimal, so, simply a change, the program has become this:

1 double Add (double A,double  b)2{3      return A +b; 4 }

Such programs can solve many problems, but there is no universality: You can use him to calculate 1+2, 5+ (-12);

To see a computer system from A+B (1)