Changes in version 0.2.0 (2023-04-19) This is a minor release adding a new integration domain (non-negative real numbers) and minor bug fixes (including spelling errors). New features - New integration domain P = (0,\infty)^n with associated generic classes and two integration functions (log-normal and log-t densities). - New integration test function BFN4 for the unit hypercube. - Rewrites exactIntegral method in standardSimplex_exp_sum.R to avoid using the gsl package. Bug fixes - Corrects spelling errors in documentation. Changes in version 0.1.1 (2021-10-05) First release.