The eccentricity of a conic section is given the label![]()
For a circle![]()

For an ellipse
and
if
and
if![]()
and![]()

For a parabola,![]()

For a hyperbola
and![]()
and![]()
The eccentricity of a conic section is given the label![]()
For a circle![]()

For an ellipse
and
if
and
if![]()
and![]()

For a parabola,![]()

For a hyperbola
and![]()
and![]()