Computation of a Cubic B-Spline Basis and Its Derivatives R package cubicBsplines version 1.0.0 Computation of a cubic B-spline basis for arbitrary knots. It also provides the 1st and 2nd derivatives, as well as the integral of the basis elements. It is used by the author to fit penalized B-spline models, see e.g. Jullion, A. and Lambert, P. (2006) <doi:10.1016/j.csda.2006.09.027>, Lambert, P. and Eilers, P.H.C. (2009) <doi:10.1016/j.csda.2008.11.022> and, more recently, Lambert, P. (2021) <doi:10.1016/j.csda.2021.107250>. It is inspired by the algorithm developed by de Boor, C. (1977) <doi:10.1137/0714026>. Software Philippe Lambert <p.lambert@uliege.be> Comprehensive R Archive Network (CRAN) Philippe Lambert [aut, cre] (Université de Liège / Université catholique de Louvain (Belgium)) GPL-3 2021-07-13 application/tgz https://CRAN.R-project.org/package=cubicBsplines doi:10.32614/CRAN.package.cubicBsplines