  In this article, we review the use of numerical techniques to obtain
solutions for the quantum Hamiltonian constraint in loop quantum cosmology
(LQC). First, we summarize the basic features of LQC, and describe features of
the constraint equations to solve - generically, these are difference (rather
than differential) equations. Important issues such as differing quantization
methods, stability of the solutions, the semi-classical limit, and the
relevance of lattice refinement in the difference equations are discussed.
Finally, the cosmological models already considered in the literature are
listed, along with typical features in these models and open issues.
