C程序-泰勒级数_长公式

这个公式来自我的一个朋友——我为他修改了它。但我似乎无法弄清楚如何获得每个角度的正确正弦计算。有人可以帮助我在罪恶部分获得正确的命令吗？

Code:

 #include<stdio.h>
#define PI 3.141592653589
#define NUMBER_OF_TERMS 10


double factorial(double x)
 {
  double counter, total;
  counter=x;
  total=x;
  while(counter>1)
  {
     counter--;
     total = total * counter;
  }
  return total;
  }
  double power(double x, double y)
  {
  double counter, j;
  counter=0;
  j = x;
  while (counter<(y-1))
  {
        counter++;
        x = x * j;
  }
  return x;
  }
  double cosine_func(double radians)
  {
  int counter, x;
  double cosine;
  x=0;
  counter=0;
  cosine = 0;
  while(counter<NUMBER_OF_TERMS-1)
  {
             counter++;
             x=x+2;
             if(counter%2 == 0)
              {
                  cosine = cosine - (power(radians, x)/factorial(x));
              }
             else if(counter%2 != 0)
             {
                  cosine = cosine + (power(radians, x)/factorial(x));
             }

  }
  return cosine;
  }
  double sine_func(double radians)
  {
  int counter, x;
  double sin;
  x=0;
  counter=0;
  sin = 0;
  while(counter<NUMBER_OF_TERMS-2)
  {
             counter++;
             x=x+3;
             if(counter%2 != 0)
              {
                  sin= sin -(power(radians, x)/factorial(x));
              }
             else if(counter%2 != 0)
             {
                sin= sin + (power(radians, x)/factorial(x));
             }
    }
  return sin;

    } 
   main()
 { 
  double counter;       
  double x_angles;         
  double x_radians;  
  double cosine;   
  double sin;      


  printf("11526769\n\n");
  printf("x(degrees)\t   x(radians)\t\t     cos x\t\t  sin x\t\t");
  counter = 0;
  x_angles = -185;
  while (x_angles<180)
  {
        counter++;
        x_angles+=5;
        x_radians=x_angles*PI/180.0;
        cosine=1-cosine_func(x_radians);
        sin=x_radians-sine_func(x_radians);
        printf("%.2lf\t\t%.12lf\t\t%.12lf\t\t%.12lf\n", x_angles, x_radians, cosine, sin);
  }
  return 0;
  } 

for(f2=3;f2==1;f2--){
    fac2*=f2;
}

f2 用 3 初始化，然后在条件部分检查如果 f2 等于 1返回 false。

这个循环甚至不会运行一次。条件第一次是假的。所以

fac2*=f2;

永远不会被执行。

并且您对每个下一个循环都犯了同样的错误。