Présentation de 2087.jps

/syracuse/bbgraf/tmp/2087.jpg
25 setxunit 7.5 setborder 90 setangle_repere -4 5 setxrange -4 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# -(1/2)*x^2+x+(7/2) } def /g {setxvar #rpn# 3*x^2-12*x+12 } def gsave bleu 0.75 setlinewidth continu {f} courbe grestore gsave rouge 0.75 setlinewidth continu -2 2 {g} courbe grestore #latex# $y=x^2$ 3.5 4.25 [2 2] crtexlabel #latex#$y=-x^2$ 3.5 -3.25 [2 2] crtexlabel