MINOR-1 (spherical_functional.hpp:426)
Wrong comment said "second derivative < 0 for a convex functional".
The spherical energy is *concave* (NSD Hessian); the monotone-f argument
applies to both convex and concave functionals equally. Comment rewritten
to explain the actual physics: increasing scale increases all angles and
thus reduces Σ G_v.
MINOR-2 (spherical_functional.hpp:494-495)
Forward finite difference O(ε) → central finite difference O(ε²):
old: dft = (sum_Gv(t + fd_eps) - ft) / fd_eps
new: dft = (sum_Gv(t + fd_eps) - sum_Gv(t - fd_eps)) / (2*fd_eps)
Same cost when the extra sum_Gv(t - fd_eps) replaces the cached ft.
MINOR-3 (euclidean_functional.hpp, spherical_functional.hpp,
inversive_distance_functional.hpp)
New header gauss_legendre.hpp centralises the 10-point Gauss-Legendre
nodes and weights (gl10_nodes() / gl10_weights()). The three energy
functions now use the shared accessors instead of duplicated local
static arrays.
MINOR-4 (euclidean_functional.hpp, spherical_functional.hpp,
hyper_ideal_functional.hpp, inversive_distance_functional.hpp)
halfedge_to_index() centralised in conformal_mesh.hpp. All four local
aliases (eucl_hidx, spher_hidx, hidx, id_detail::hidx) now delegate to
it as one-line wrappers; the aliases are kept for now to avoid a larger
call-site churn, clearly documented as thin wrappers.
MINOR-5 (clausen.hpp:33-38)
Added a comment above inits() explaining the intentional off-by-one
return value and how it interacts with csevl() — matching the Java
Clausen.inits() / csevl() contract.
277/277 CGAL + 26/26 pure-math tests pass, 0 failed.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
