gistfile1.txt

int main(int argc, char *argv[]) {
  
	int n=50;
	float h=0.1;
	float y[n];
	float x[n];
	x[0]=0;
	x[1]=h;
	y[0]=1;
	y[1]=1-h;
	printf("x %d\n", x[0]);
	printf("y %d\n", y[0]);
	printf("x %d\n", x[1]);
	printf("y %d\n", y[1]);
	int i;
	for(i=2; i<n; i++) {
	x[i]=i*h;
	y[i]=y[i-2]-2*h*y[i-1];	
	printf("x %d\n", x[i]);
	printf("y %d\n", y[i]);
}
	return 0;
}