C Program to generate sine series

#include<stdio.h>
#include<conio.h>
#include<math.h>
#define ACC 0.000001
#define PI 3.14
void main()
{
int x,i;
float x1,x2,sine=0,term;
clrscr();
printf("Enter the X value:");
scanf("%d",&x);
x1=(x*PI)/180;
x2=x1*x1;
term=x1;
sine=term;
for(i=3;fabs(term)>ACC;i=i+2)
{
term = (x2*(-term))/(i*(i-1));
sine = sine+term;
}
printf("\n%f",sine);
getch();
}