Origin of parabola
Examples from the Web for parabola
The graph of F is a straight line; that of M is a parabola with vertical axis.
The parabola of a comet was perhaps a yet better illustration of the career of humanity.Looking Backward|Edward Bellamy
The rockets still swished upward, making their parabola of sparks and keeping the night hideous with their bursting green.Behind the Scenes in Warring Germany|Edward Lyell Fox
In fact, a parabola is merely an ellipse, with its longer axis produced to an indefinite extent.The Critique of Pure Reason|Immanuel Kant
I feel, “inside,” as children say, that my parabola will be finished before I can win to the burning heart of the man.An Ocean Tramp|William McFee