tst_power.cc

来自「Financial Recipes」· CC 代码 · 共 16 行

#include <iostream>  // input output operations
#include <cmath>      // mathematics library
using namespace std;   // the above is part of the standard namespace

double power(double x, double n){
    // define a simple power function 
    double p = exp(n*log(x));
    return p;
};

int main(){
    for (int n=1;n<6;n++){
	cout << " 2^" << n << " = " << power(2,n) << endl;
    };
};