Creating the local function

There are a variety of approaches you can take to do this. In this case, on a new line within our new function, type the following:

double c = CompareFirstTwo(x, y); 

Here, we are creating a variable by calling a new function, so let's go ahead and create this function. Start a new line underneath the preceding statement and type the following:

double CompareFirstTwo(double a, double b) 
{ 

} 

With this, we've created a local function inside FindBiggestValue. The use of our CompareFirstTwo function is highly restricted to finding the biggest value. It doesn't really serve much of a purpose outside that, which is why I'm using it as a local function. Inside our new local function, type the following:

return (a > b) ? a : b; 

So, we are using the ternary operator to compare the two values. If a is greater than b, return a. Otherwise...