directrix in English
In the following, the feet of perpendiculars dropped from points A, B, etc. on the parabola to the directrix will be denoted A ’, B ’, etc.
Use "directrix" in a sentence
1. Construct a conic with this line as directrix
2. A conic with given directrix and focus, through a point
3. Select the conic of which you want to construct the directrix
4. The Conoid is a right Conoid, if its axis is perpendicular to its directrix plane.Hence all rulings are perpendicular to the axis.
5. The Conoid is a right Conoid, if its axis is perpendicular to its directrix plane.Hence all rulings are perpendicular to the axis.
6. In geometry a Conoid (Greek: κωνος cone and -ειδης similar) is a ruled surface, whose rulings (lines) fulfill the additional conditions (1) All rulings are parallel to a plane, the directrix plane
7. Credit: Wikipedia License: In geometry a Conoid is a ruled surface, whose rulings (lines) fulfill the additional conditions (1) All rulings are parallel to a plane, the directrix plane
8. Any Conic may be determined by three characteristics: a single focus, a fixed line called the directrix, and the ratio of the distances of each to a point on the graph.Consider the parabola \(x=2+y^2\) shown in Figure \(\PageIndex{2}\).
9. MILAZZO is deeply rooted into prehistoric times and was slowly built up along a sinuous and variegated dorsal that stretches out into the Tyrrhenian Sea for 7 km after the earth movements that formed the bold outline of its promontory on the directrix of the Aeolian Islands. Thanks to the splendid climate, the superb, restful panorama of the Archipelago, standing out on the horizon in a myriad of light and colour, can nearly always be seen from here.