Method operator-

src/utilities/geometry/Vector3d.cpp:52–57

subtraction

/// subtraction
Vector3d Vector3d::operator-(const Vector3d& other) const {
  double newX = x() - other.x();
  double newY = y() - other.y();
  double newZ = z() - other.z();
  return {newX, newY, newZ};
}

/// subtraction
Vector3d& Vector3d::operator-=(const Vector3d& other) {