Assertion: plane curve | /r/CapableOf | remain unchanged
Facets:
value: under a special affine transformation
type: OTHER
Source sentences:
text: Special affine curvature, also known as the equi-affine curvature or affine curvature, is a particular type of curvature that is defined on a plane curve that remains unchanged under a special affine transformation (an affine transformation that preserves area).