cross ratio

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cross ratio

see odds ratio. Called also approximate relative risk.
References in periodicals archive ?
For projective transformation, the most fundamental invariant is called the cross-ratio invariant.
Since the cross-ratio is invariant under any projective mapping T, (H, distH) and (T(H), distT(H)) are isometric as Hilbert geometry (figure 2).
Lightweight 6-speed manual transmission with cross-ratios matching engine characteristics provide a quick and exhilarating gear shift feel.