Maps a tangent vector V (symmetric matrix) from the tangent space at SPD matrix S1
back to the SPD manifold using the AIRM.
Result is `S1^(1/2)
Usage
expmap_spd_airm(S1, V_at_S1, regularize_epsilon = 1e-06)
Arguments
- S1
SPD matrix (point on manifold).
- V_at_S1
Symmetric matrix (tangent vector at S1).
- regularize_epsilon
Epsilon for regularization. Default 1e-6.
Value
An SPD matrix on the manifold.