What are the functions of sonar?

Try it and then tell us if it works or not.

Here is an example for a variable, which is a function (function-pointer, actually): int (*myfun)(const char *s); myfun = puts; myfun ("Hello, world");

mathematical function (a mathematical relation that takes each element of a given set to exactly one element of another set)

Yes you can determine the function of a function Key. You must access the registry and make the change.

The average of a set of numbers is equal to the sum of those numbers divided by the number of numbers. So, one might say that the average function is equal to the sum function divided by the count...