Last Updated
：2025/11/20
latus rectum
Noun
Japanese Meaning
円錐曲線（放物線、楕円、双曲線など）において、焦点を通る直線で、準線と平行に引かれ、曲線と両端で交わる部分。主軸のパラメーターとしても用いられる。
（ plural ）
（ plural ）
Quizzes for review
(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.
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latus rectum
When sketching a conic section, make sure to draw the latus rectum through the focus, because its length determines the width of the curve.
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When sketching a conic section, make sure to draw the latus rectum through the focus, because its length determines the width of the curve.
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