C++ examples for Function:Recursive Function
A function that contains a call to itself is referred to as a recursive function.
#include <iostream> #include <iomanip> double power(double x, int n); int main()//from w w w . ja va 2 s. c o m { for (int i {-3} ; i <= 3 ; ++i) // Calculate powers of 8 from -3 to +3 std::cout << std::setw(10) << power(8.0, i); std::cout << std::endl; } // Recursive function to calculate x to the power n double power(double x, int n) { if (!n) return 1.0; // n zero if (n > 0) return x*power(x, n - 1); // n positive return 1.0 / power(x, -n); // n negative }