Dagnino, C.; Demichelis, V.; Lamberti, Paola; Pittaluga, G.; Sacripante, L. On univariate and bivariate polynomial spline approximation. (English) Zbl 0981.65020 Ann. Univ. Ferrara, Nuova Ser., Sez. VII 46, Suppl., 455-466 (2000). The authors consider univariate and bivariate spline approximation. Many results of this paper were published previously. MATLAB software for quadratic quasi-interpolating \(C^1\)-splines on a type-2 triangulation is presented, too. Reviewer: Manfred Tasche (Rostock) MSC: 65D07 Numerical computation using splines 41A15 Spline approximation 65Y15 Packaged methods for numerical algorithms Keywords:quasi-interpolation; MATLAB software; univariate and bivariate spline approximation; triangulation Software:Matlab PDF BibTeX XML Cite \textit{C. Dagnino} et al., Ann. Univ. Ferrara, Nuova Ser., Sez. VII 46, 455--466 (2000; Zbl 0981.65020)