27 #ifndef vtkMathUtilities_h 
   28 #define vtkMathUtilities_h 
   42   return fabs(a - b) < std::numeric_limits<A>::epsilon();
 
   51   return fabs(a - b) < epsilon;
 
   67   if ((a == 
static_cast<A
>(0)) ||
 
   68     ((b > 
static_cast<A
>(1)) && (a < b * std::numeric_limits<A>::min())))
 
   70     return static_cast<A
>(0);
 
   83 bool NearlyEqual(A a, A b, A tol = std::numeric_limits<A>::epsilon())
 
   85   A absdiff = fabs(a - b);
 
   86   A d1 = vtkMathUtilities::SafeDivision<A>(absdiff, fabs(a));
 
   87   A d2 = vtkMathUtilities::SafeDivision<A>(absdiff, fabs(b));
 
   90   if ((d1 <= tol) || (d2 <= tol))
 
   99 #endif // vtkMathUtilities_h