Clue | Source | Date |
---|---|---|
Circle, ellipse, parabola and hyperbola | Wall Street Journal | 25 Nov 2017 |
Ellipses and parabolas | ||
Parabolas, ellipses, etc. | ||
Parabolas, e.g. | ||
Geometrical figures | ||
Parabolas, e.g. | ||
Ellipses, parabolas, etc. | ||
Geometric curves | ||
Theory of a branch of geometry. |