How to return a value:

In order to return a value, you must do two things in your function:

• Specify the return type in the function header.

  A return type different than "void" means the function returns a result.

• Include in the function body at least one statement specifying which is the result you want to return.

  This is done using the keyword "return".

 Ex.

float dif(float value1,float value2);

{

return value1-value2;

}