qq_43981342的博客

cosx sinx 泰勒展开 C++sinx , cosx 的泰勒展开：void tylor_sin(int n){ double s=n; double i=1; double term=n; do { term=-term*n*n/((i+2)*(i+1)); s+=term; i+=2; }while(fabs(term)>1e-6); cout<<"the value of sin"<<n<<" is :"<&l

转换构造函数 与 类型转换函数#include<iostream>using namespace std;class Complex{public: Complex(){real=0;imag=3.33;} Complex(double r,double i):real(r),imag(i){} Complex(double r){real=r;imag=2.22;} Complex(const Complex& c){real=c.real;imag=c.imag;