latus rectum
(geometry) The line drawn through a focus of a conic section parallel to the directrix and terminated both ways by the curve. It is the parameter of the principal axis.
Obsolete form of hemosiderosis.
Third-person singular simple present indicative form of take the edge off
present participle of outbreast
円錐曲線を描くときは、準線に平行で焦点を通る線分を必ず描いてください。その長さが曲線の幅を決めます。
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