# Ellipse

## Central Ellipse

$$\frac{{x}^{2}}{{a}^{2}}+\frac{{y}^{2}}{{b}^{2}}=1$$

## Focal points of a Central Ellipse

$${F}_{1}(-c,0);{F}_{2}(c,0);c=\sqrt{{a}^{2}-{b}^{2}}$$

## Non-Central Ellipses

$$\frac{(x-u{)}^{2}}{{a}^{2}}+\frac{(y-v{)}^{2}}{{b}^{2}}=1$$

Keywords: sllipse