cross-ration.

Etymology: cross- comb. form 1c(d).Previous versions of the OED give the stress as: ˈcross-ˌratio.

Mathematics.

= anharmonic adj. ratio.

ΘΚΠ

the world > relative properties > number > mathematical number or quantity > numerical arrangement > [noun] > set > sequence > progression > numerical elements in or parts of > relation between

harmonic proportion1706

cross-ratio1881

harmonic ratio1949

1881 C. Taylor Anc. & Mod. Geom. Conics 249 An Anharmonic Ratio, or a Cross ratio of the four points.

1882 C. Smith Conic Sect. (1885) 53.

This entry has not yet been fully updated (first published 1893; most recently modified version published online June 2019).

单词	cross-ratio
释义	cross-ration. Etymology: cross- comb. form 1c(d).Previous versions of the OED give the stress as: ˈcross-ˌratio. Mathematics. = anharmonic adj. ratio. ΘΚΠ the world > relative properties > number > mathematical number or quantity > numerical arrangement > [noun] > set > sequence > progression > numerical elements in or parts of > relation between harmonic proportion1706 cross-ratio1881 harmonic ratio1949 1881 C. Taylor Anc. & Mod. Geom. Conics 249 An Anharmonic Ratio, or a Cross ratio of the four points. 1882 C. Smith Conic Sect. (1885) 53. This entry has not yet been fully updated (first published 1893; most recently modified version published online June 2019). < n.1881
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