Density, Cumulative and Quantile Functions of Quadratic Forms R package QF version 0.0.9 CRAN Task View: Distributions (https://CRAN.R-project.org/view=Distributions) The computation of quadratic form (QF) distributions is often not trivial and it requires numerical routines. The package contains functions aimed at evaluating the exact distribution of quadratic forms (QFs) and ratios of QFs. In particular, we propose to evaluate density, quantile and distribution functions of positive definite QFs and ratio of independent positive QFs by means of an algorithm based on the numerical inversion of Mellin transforms. Software Imports: Rcpp LinkingTo: Rcpp, RcppGSL Aldo Gardini <aldo.gardini2@unibo.it> Comprehensive R Archive Network (CRAN) Aldo Gardini [aut, cre], Fedele Greco [aut], Carlo Trivisano [aut] GPL-3 2025-03-27 application/tgz https://CRAN.R-project.org/package=QF doi:10.32614/CRAN.package.QF