Returns a curve's inflection points. An inflection point is a location on
a curve at which the sign of the curvature (i.e., the concavity) changes.
The curvature at these locations is always 0.
RhinoCommon (in RhinoCommon.dll)
public Point3d InflectionPoints()
Public Function InflectionPoints As Point3d()
An array of points if successful, null if not successful or on error.