#include <stdlib.h>
#include <math.h>

/* run this program using the console pauser or add your own getch, system("pause") or input loop */

double power (int base, int n){
	int p,i;
	for (i = 1; i<n+1; i++){
		p = p*i;
	}
	return p;
}

double degrees_to_rad (double x){
	x = x * M_PI/180;
	return x;
}

double  absolute(double paragontas){
	return paragontas = sqrt(power(paragontas,2));
}


int main(int argc, char *argv[]) {
	int i=1,l=1;
	double xdeg,xrad,sin1,sum=0,check;
	printf("Give me the x in degrees:");
	scanf("%lf",&xdeg);
	xrad = degrees_to_rad(xdeg);
	do{
		if(i==1)
		{
			sin1=power(xrad,i)/i;
		}
		else
		{
			sin1=power(xrad,i)/(i*(i-1));
			l=l*(-1);
		}
		check = absolute(sin1 - power(xrad,i-1)/((i-1)*(i-2)));
		if ( check >= 0.000001)
		{
			sum = sum + l*sin1;
		}
		i+=2;
	} while ( check >= 0.000001);

	printf("The result using taylor series is --> %lf \n"
		   "The result using c function sin(x) is ---> %lf",sum,sin(xrad));


	return 0;
}