Assertion: curvature's curvature | /r/HasProperty | useful
Facets:
value: very
type: DEGREE
value: for his work
type: PURPOSE
Source sentences:
text: His equation involves a special curvature called Ricci curvature, which was defined first by mathematicians and was very useful for his work.
text: Curvature is an extremely useful seismic attribute, as it improves the imaging of both large and small scale geometric features in the subsurface.