Multiple parameters can also be used if you want to make math calculations or describe some logic. For example, we want to write the function which will write the average of 2 numbers (sum of numbers divided by its count):

// Declaration of the function, which calculates the mean of 2 numbers
void avr(int a, int b) {
&nbsp;&nbsp;&nbsp;&nbsp;cout << (a+b)/2 << endl;
}

int main() {
&nbsp;&nbsp;&nbsp;&nbsp;// Call the function to be executed 
&nbsp;&nbsp;&nbsp;&nbsp;avr(4, 8);  
&nbsp;&nbsp;&nbsp;&nbsp;avr(3, 5);
&nbsp;&nbsp;&nbsp;&nbsp;return 0;
}

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