A. Numerical Computation
 Numeric / continuous
 Computation of a subgradient (the whole subdifferential?)
 Computation of the convex enveloppe.
 Computation of the dual(polar) set of a 2 3 dimensional convex set.
 Numeric / Discrete
 Set operations for polytopes: internal/external representation, union, intersection,
dual, convex hull, extreme points...
 All functional operations for piecewise affine functions
(
infconvolution).
 Approximation of a convex set by polytopes and of a convex function by
a piecewise affine function.

A (lower) convex hull

