SpheGeoHess {frechet} | R Documentation |
\partial^2/\partial y \partial y^\top
of the geodesic distance \arccos(x^\top y)
on a unit hypersphereHessian \partial^2/\partial y \partial y^\top
of the geodesic distance \arccos(x^\top y)
on a unit hypersphere
SpheGeoHess(x, y)
x , y |
Two unit vectors. |
A Hessian matrix.