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单词 crunode
释义

crunoden.

/ˈkruːnəʊd/
Etymology: Irregularly < Latin crux cross + node n.
Geometry.
A point on a curve where it crosses itself; a node with two real tangents.
ΚΠ
1873 G. Salmon Treat. Higher Plane Curves 22 In the first case the tangents are both real..such a point is termed a crunode.

Derivatives

cruˈnodal adj. having a crunode.
ΚΠ
1873 G. Salmon Treat. Higher Plane Curves 126 Nodal cubics may obviously be subdivided into crunodal and acnodal.
This entry has not yet been fully updated (first published 1893; most recently modified version published online June 2018).
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n.1873
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更新时间:2024/9/23 17:16:53