# sectional curvature

> scalar quantity; given two unit tangent vectors u, v at the same point, defined as K(u,v) = ⟨R(u,v)v,u⟩/(1-⟨u,v⟩²), where R is the Riemann curvature

**Wikidata**: [Q855622](https://www.wikidata.org/wiki/Q855622)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Sectional_curvature)  
**Source**: https://4ort.xyz/entity/sectional-curvature


## References

1. Freebase Data Dumps. 2013
2. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)