SpheGeoGrad {frechet} | R Documentation |
\arccos(x^\top y)
on a unit hypersphereCompute gradient w.r.t. y of the geodesic distance \arccos(x^\top y)
on a unit hypersphere
SpheGeoGrad(x, y)
x , y |
Two unit vectors. |
A vector holding gradient w.r.t. y
of the geodesic distance between x
and y
.