file_09.cpp

来自「数据结构常用算法合集」· C++ 代码 · 共 14 行

//file_09.cpp
#include <fstream.h>
#include <math.h>					//sin()
const float PI=3.14159;
void main()
{ float d;
  ofstream outfile("fdata.txt");
  outfile << "deg sin(deg)\n";		//存标题
  for (int i=0;i<=90;i=i+5)
  { d = sin(PI/180*i);				//求sin函数值
    outfile << i << " " << d <<"\n";	//将角度与数值保存
  }
}