Focal semidistance
The focal semidistance or linear eccentricity is the distance between the center and the focus (or one of the two foci).
Syntax
focal_semidistance(Conic)
Description
Given a conic, returns the focal semidistance.
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The focal semidistance or linear eccentricity is the distance between the center and the focus (or one of the two foci).
focal_semidistance(Conic)
Given a conic, returns the focal semidistance.
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