Christoffel symbol

Christoffel Symbols are numbers that show how points are connected together in space. They’re kind of like directions. Imagine that you are standing in the middle of a room and you want to find your way around. If you look at the walls and ceiling, you can tell which direction you need to go in order to find the door. The directions are like Christoffel Symbols - they tell you how to move around in different ways.