Présentation de lect_009.jps

/syracuse/bbgraf/albums/analyse_2nd/lect_009.jpg
-5 14 setyrange -4 7 setxrange 2 setxyrapport 20 setxunit 2 setymkstep 1 2 setsubtkstep 1 2 setquadrillagestep quadrillage /unites {} def tracerepere marks /f { setxvar x dup mul -2 x mul add -3 add } def [-3 5] {dup f} apply dashpoints 1 setlinewidth -3 5 {f} Courbe