Geometric Technicalities

This section is a brief explanation of the geometric concepts used to
produce the methods employed by `sg_min`

and its subroutines.
This information is mostly a recapitulation of material readily available
in the differential geometry literature.

- Manifolds
- The Difference Between a Tangent and a Differential
- Inner Products, Gradients, and Differentials
- Getting Around
- Covariant Differentiation
- Inverting the Covariant Hessian (Technical Considerations)

Susan Blackford 2000-11-20