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## Hyperbola |

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | overview |

For the points on a hyperbola the difference of the distances from two given points (foci) is constant:

with .

If , then we have for the coordinates

and

for the polar coordinates of the points . The asymptotes have the slope .

A parametrisation of the hyperbola branches is given by

with .

**Annotation:**

automatically generated 3/28/2008 |