Taylor-unfolded implementation of C + + sin

Source: Internet
Author: User
Tags sin

 sinx.cpp :  defines the entry point of the console application. #include   "stdafx.h" #include  <iostream>using std::cout;using std::cin;using  Std::endl;int factorial (int num) {    int a=1;    for ( int i=1;i<num;i++) {        a=a* (i+1);     }     return a;} Double ssin (double t) {    bool flag = true;//t subtraction, F-addition      t=3.14159265/(180/t);//conversion into radians     double result = t;     double a=0,b=0;    double oddnum = 0;     for (int i=0;i<12;i++) {//Precision         oddnum = 2* ( i+1) +1;        a=pow (t,oddnum);         b=  (double) factorial (oddnum); &nbsP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;IF (flag) {             result = result -  (A/b);             flag = false;        }         else{             result = result +  (A/b);             flag = true;        }    }     return result;} Int _tmain (int argc, _tchar* argv[]) {    //sin (20°)  =  0.34202014332566873304409961468226     double a = ssin (20);//Angle      cout<<a;    system ("Pause");}

vs2012

Taylor-unfolded implementation of C + + sin

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