#geometry A **hyperbola** is the set of all points in the plane, the difference of whose distances from two fixed points $\LARGE F_1$ and $\LARGE F_2$ (the foci (similar to an [[Эллипс|ellipse]])). ![[Pasted image 20241001003336.png]] ## Standard equation $$\LARGE \frac{x^2}{a^2}-\frac{y^2}{b^2}=1$$ Derivation: ![[Pasted image 20241001003449.png]] ![[Pasted image 20241001003636.png]]Rectangle in center = **central box** Hyperbola's directrixes: ![[Pasted image 20241112215128.png]] ## Shifted hyperbolas ![[Pasted image 20241001004708.png]]