Présentation de 1907.jps

/syracuse/bbgraf/tmp/1907.jpg
25 setxunit 7.5 setborder 90 setangle_repere -3 3 setxrange -7 5 setyrange /quadrillagegray 0.4 def 1 setquadrillagexstep 1 setquadrillageystep quadrillage 1 1 settkstep .5 .5 setsubtkstep 2 2 setmkstep ticks subticks marks traceaxes axesarrow unites /f {setxvar #rpn# (x+1)^3-3*(x+1)-1 } def /f' {setxvar #rpn# 3*(x+1)^2 - 3 } def gsave noir .75 setlinewidth continu {f} courbe grestore 2.8 settailletangente -2 (f) tangente 0 (f) tangente 9 settailletangente -1 (f) tangente 4 settailletangente 1 (f) tangente