# Semi-Major Axis - Hyperbola

## Description

The semi-major axis of a hyperbola is, depending on the convention, plus or minus one half of the distance between the two branches. Thus it is the distance from the center to either vertex (turning point) of the hyperbola.

Related formulas## Variables

a | semi-major axis (1) |

l | semi-latus rectum (1) |

e | e |