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Directrix - a feminine form of director in the context of grammatical gender Topics referred to by the same term This disambiguation page lists mathematics articles associated with the same title.
"Parabola" is used frequently. It first appears attached to two diagrams from Ted's geometry lessons, one of a parabola showing the curve as the locus of points equidistant from a focus and a directrix, the other as a cross-section of a cone. Later uses, along with "equidistant" and "directrix", are vague and metaphorical.
*The distance from a point, P, on the ellipse to a focus is always proportional to the distance to a vertical line, D, called the directrix. The constant of proportionality is the eccentricity, e. *The eccentricity is always between 0 and 1. At zero, the ellispe becomes a circle, at 1 the ellipse becomes a parabola.
Butler is in his 14th year in the NBA. He's been with the Heat since 2019. Miami is reportedly open to listening to offers for Butler, who wants a trade to a "win-now contender" above all.
Montrell Johnson Jr.'s 5-yard touchdown run with 7:40 remaining in the fourth quarter gave Florida a 24-17 win over No. 9 Ole Miss on Saturday in Gainesville. Ole Miss had a chance to tie the game ...
Examples include the plane, the lateral surface of a cylinder or cone, a conical surface with elliptical directrix, the right conoid, the helicoid, and the tangent developable of a smooth curve in space. A ruled surface can be described as the set of points swept by a moving straight line.
The two-time NBA MVP leads the Warriors this season with 22.4 points per game, shooting 44% (60-for-135) on 3-pointers. Additionally, he's averaging 6.5 assists and 5.4 rebounds.
For example, using a compass, straightedge, and a piece of paper on which we have the parabola y=x 2 together with the points (0,0) and (1,0), one can construct any complex number that has a solid construction. Likewise, a tool that can draw any ellipse with already constructed foci and major axis (think two pins and a piece of string) is just ...