input courbescp13; beginfig(1); cadre((0,0),(10,8)); draw grille(0.5) withcolor gris; origine((5,3.5)); unites(1,1); draw axes; legendex(btex $x$ etex); legendey(btex $f(x)$ etex); draw placepoint(-5,3)..placepoint(-4,2)..placepoint(-3,0.5)..placepoint(-2,-1)..placepoint(-1,0)..placepoint(0,2)..placepoint(1,4)..placepoint(2,3)..placepoint(3,1)..placepoint(4,-1)..placepoint(5,-3); graduationx(btex 1 etex,1); graduationy(btex 1 etex,1); endfig; beginfig(2); cadre((0,0),(10,7)); draw grille(0.5) withcolor gris; origine((3,1)); unites(1,1); graduationx(btex 1 etex,1); graduationy(btex 1 etex,1); draw axes; legendex(btex $x$ etex); draw placepoint(-3,1)..placepoint(-2.15,1.9)..placepoint(0,3.2)..placepoint(2,3)..placepoint(5,4)..placepoint(6,5)..placepoint(6.5,6); pair A,B,C,D,E,F,K; A=placepoint(2,3); B=placepoint(2,0); C=placepoint(5,4); D=placepoint(5,0); E=placepoint(0,3); F=placepoint(0,4); K=placepoint(-2.15,1.9); dotlabel.top(btex $A$ etex,A); dotlabel.top(btex $C$ etex,C); dotlabel.top(btex $K$ etex,K); draw Projection(A); draw Projection(C); label.bot(btex $B$ etex,B); label.bot(btex $D$ etex,D); label.lft(btex $E$ etex,E); label.lft(btex $F$ etex,F); endfig; end