Calculate Sin(X)

   1:  #include <iostream.h>

   2:  #include <math.h>

   3:   

   4:  int fact(int);

   5:   

   6:  void main()

   7:  {

   8:  float x,sinx=0,Result,b;

   9:  int p=1,i,counter=0,n=1;

  10:  cout<<"Enter Positive integer between\n";

  11:  cin>>x; // Read Positive Number

  12:  if(x==999)

  13:  cout<<"end program";

  14:  else if(x>0)

  15:  {for(i=0;i<100;i++)

  16:   

  17:   

  18:  {   b = pow(x,p)/fact(p);

  19:      Result = pow(x,p)/fact(p);

  20:      Result *=n;

  21:      sinx = sinx + Result;

  22:      p+=2;

  23:       counter++;   // To Calculate The Number Terms

  24:      n*=-1;

  25:      if(b<0.0001) break;  // To Stop When the value of term become <0.0001

  26:  }

  27:   

  28:  cout<<"The Sum sin(x) = "<<sinx<<endl;

  29:  cout<<"The Number Of Terms = "<<counter;

  30:  }

  31:  else

  32:  cout<<"Error(Enter Positive Number)";

  33:  }

  34:  int fact(int n)

  35:  {

  36:  if(n==1)

  37:  return 1;

  38:  else

  39:  return n*fact(n-1);

  40:  }