Do it in your head. Feel free to approximate/round up or down where convenient.
It is an estimation after all, so you don't need to get the right answer to the fourteenth decimal place. If you are not wrong by an order of magnitude, you should be fine.
Do it in your head. Feel free to approximate/round up or down where convenient. It is an estimation after all, so you don't need to get the right answer to the fourteenth decimal place. If you are not wrong by an order of magnitude, you should be fine.