isNaN property

bool isNaN

True if any component is NaN.

Implementation 

bool get isNaN {
  bool is_nan = false;
  is_nan = is_nan || _v3storage[0].isNaN;
  is_nan = is_nan || _v3storage[1].isNaN;
  is_nan = is_nan || _v3storage[2].isNaN;
  return is_nan;
}