Présentation de 267.jps

/syracuse/bbgraf/tmp/267.jpg
25 setxunit 7.5 setborder 90 setangle_repere -10 10 setxrange -4 8 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*x-4*x+3 } def gsave bleu .75 setlinewidth continu {f} courbe grestore