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cross-ratio

noun

Etymology

From cross- + ratio.

  1. borrowed from ratiō
  2. formed as cross-ratio — “cross- + ratio”

Definitions

  1. A special number associated with an ordered quadruple of collinear points, particularly…

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

The neighborhood

Vish — recursive loop

No curated loop yet for cross-ratio. Loops are being traced one word at a time while the ingestion pipeline matures.

sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA