单词 | radical plane |
释义 | > as lemmasradical plane radical plane n. Geometry a plane whose points have equal power (power n.1 12d) with respect to two given spheres (identical with the plane containing the circle of intersection of the spheres if they intersect). ΚΠ 1872 Philos. Trans. 1871 (Royal Soc.) 161 652 The envelope of the radical plane of a pair of inverse osculating spheres of a sphero-quartic is a cone of the fourth degree. 1961 C. C. T. Baker Dict. Math. 253 If λ is chosen as −1, this surface degenerates into the plane of intersection of the two spheres, and it is called the radical plane of the coaxal system. 2004 Computer-aided Design 36 1033/1 The radical plane of two spheres is the locus of the points for which the powers with respect to both spheres are equal. < as lemmas |
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