| 1 | Actually, there is a better way to do it in coordinates. | |
| 2 | What coordinates do we use to compute this integral? | |
| 3 | How do we do the calculation in coordinates, or I should say using components? | |
| 4 | If it is a square,I might want to use x,y coordinates. | |
| 5 | Now if you're very smart +z you may say, "Aha! You find plus z "only because you have used this coordinate system. |