Assertion: parabola's equation | /r/CapableOf | represent ellipse
Facets:
Source sentences:
text: if B 2 − 4 AC < 0 , the equation represents an ellipse; if A = C and B = 0 , the equation represents a circle, which is a special case of an ellipse;
text: , the equation represents an ellipse; if B 2 − 4 AC = 0 , the equation represents a parabola;
text: Otherwise, assuming the equation represents either a non-degenerate hyperbola or ellipse, the eccentricity is given by