In this chapter, we will learn all the basic mathematical concepts that we will be using in the next few chapters of this book. While learning game physics, it's always good to have some basic command over mathematics and physics, as they are the main key components in making realistic games. For example, when we drop a ball on the ground, it keeps bouncing back and forth before coming to rest. To implement such conditions, we have to apply certain conditions to physical bodies by updating their physical parameters, such as restitution, force, bounce, friction, and so on. In the next chapter, we will use all the physics and mathematical concepts that we will learn in this chapter.