About a recent question: I must say that the following order works (Maxima 5.9.0 with clisp 2.29) (C1) openplot_curves([["{plotpoints 1} {pointsize 6} {nolines}"],[1,1,2,3,3,0,4,2]]); Best regards -- Daniel Duparc <daniel.duparc@free.fr> 29 av. de la Commune de Paris 94400 Vitry sur Seine (France)