### 26.5.11 Isobarycenter of n points in the plane

See Section 27.3.7 for isobarycenters of objects in space.

The isobarycenter command finds the isobarycenter of a list of points; the isobarycenter is the barycenter when all points are equally weighted.

- isobarycenter takes L, a list of points. (The points can also be given by a sequence).
- isobarycenter(L) draws and returns the isobarycenter of the points.