internal_basis

internal_basis(coords, specs, **opts): 

LLM Docstring

Build the internal-coordinate bases for a geometry from a set of coordinate specifications.

Normalizes the specs with internal_basis_specs, then evaluates each basis function to collect its basis, orthogonal complement, and sub-projection.

• coords: np.ndarray

  Cartesian coordinates, shape (..., N, 3)

• specs: Iterable

  the coordinate specifications

• opts: Any

  options forwarded to internal_basis_specs

• :returns: tuple[list, list, list]

  (bases, orthogonal_complements, sub_projections)