directrix

(Inglese)

  1. A female who directs; a directress.
  2. A line used to define a curve or surface; especially a line, the distance from which a point on a conic has a constant ratio to that from the focus.

Etimologia (Inglese)

Learned borrowing from Latin dīrectrīx. By surface analysis, direct + -trix.

Direktrix

kierownica

kierująca

doğrultman

المخرجة

Leitkurve

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