root.c - Funktionerne sameSign, middleOf og isSmallNumber.

Lektion 3 - slide 22 : 26 Program 1

int sameSign(double x, double y){
  return x * y >= 0.0;
}

double middleOf(double x, double y){
  return x + (y - x)/2;
}

int isSmallNumber(double x){
  return (fabs(x) < 0.0000001);
}