Présentation de 2110.jps

/syracuse/bbgraf/tmp/2110.jpg
25 setxunit 7.5 setborder 90 setangle_repere -3 3 setxrange -5 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 /f0 {setxvar #rpn# x^2 } def /f1 {setxvar #rpn# -x^2 } def gsave rouge 0.75 setlinewidth continu {f0} courbe grestore gsave bleu 0.75 setlinewidth continu xmin .01 neg {f1} Courbe .01 xmax {f1} Courbe grestore #latex# {\footnotesize{$x^2$}} 1.75 3.5 [2 2] crtexlabel #latex# {\footnotesize{$-x^2$}} -2 -2 [2 2] crtexlabel #latex# {\footnotesize{$a>0$}} -2 2 [2 2] crtexlabel #latex# {\footnotesize{$a<0$}} 1.5 -2 [2 2] crtexlabel