cross-ratios

A form of cross-ratio — A special number associated with an ordered quadruple of collinear points, particularly points on a projective line, and preserved by the fractional linear transformations.

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Meanings

noun
  1. pluralplural of cross-ratio
Cite this entry
APA

cross-ratios. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/cross-ratios

MLA

“cross-ratios.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/cross-ratios. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “cross-ratios,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/cross-ratios.

Source: cross-ratios on Wiktionary, CC BY-SA 4.0.