OPERATOR AND ARITHMETIC in Prolog

Now we have a program like this:

Then we will convert the seven predicates used to operator form which will result the same as output from the program above.

Below is our new program:

We can test our new program like this:

ARITMATCHICS OPERATOR

We have examples :

a. calculate an average from two numbers:

b. calculate the squareroot of their product:

c. Calculate the larger of X and Y:

Okey, not enough, but may usefull for us. Thank you and don't hasited give your comments.