anallagmatic

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• Anallagmatic — An al*lag*mat ic, a. [Gr. ?; an priv. + ? a change.] (Math.) Not changed in form by inversion. [1913 Webster] {Anallagmatic curves}, a class of curves of the fourth degree which have certain peculiar relations to circles; sometimes called… …   The Collaborative International Dictionary of English

• Anallagmatic curves — Anallagmatic An al*lag*mat ic, a. [Gr. ?; an priv. + ? a change.] (Math.) Not changed in form by inversion. [1913 Webster] {Anallagmatic curves}, a class of curves of the fourth degree which have certain peculiar relations to circles; sometimes… …   The Collaborative International Dictionary of English

• Anallagmatic surfaces — Anallagmatic An al*lag*mat ic, a. [Gr. ?; an priv. + ? a change.] (Math.) Not changed in form by inversion. [1913 Webster] {Anallagmatic curves}, a class of curves of the fourth degree which have certain peculiar relations to circles; sometimes… …   The Collaborative International Dictionary of English

• anallagmatic —   a. Mathematics, unchanged in shape by inversion …   Dictionary of difficult words

• bicircular quartics — Anallagmatic An al*lag*mat ic, a. [Gr. ?; an priv. + ? a change.] (Math.) Not changed in form by inversion. [1913 Webster] {Anallagmatic curves}, a class of curves of the fourth degree which have certain peculiar relations to circles; sometimes… …   The Collaborative International Dictionary of English

• Inverse curve — In geometry, the inverse curve of a given curve C with respect to a fixed circle with center O and radius a is the locus of points P for which OPQ are collinear and OP • PQ = a 2 as Q runs over the original curve C .We may invert a plane… …   Wikipedia