Présentation de 361.jps

/syracuse/bbgraf/albums/belles_02/361.jpg
20 setxunit 7.5 setborder 90 setangle_repere -2 7 setxrange -2 7 setyrange 1 1 settkstep .5 .5 setsubtkstep 1 1 setmkstep ticks subticks marks traceaxes axesarrow 1.75 setlinewidth continu bleu /X {settvar #rpn# (t+1)*(t+1)/2 } def /Y {settvar #rpn# (t-1)*(t-1)/2 } def -3 3 {X} {Y} Courbeparam noir 0.5 setlinewidth 0.5 0.5 /A defpoint 1.5 -0.5 /AA defpoint 1.125 0.125 /B defpoint 2.625 -0.375 /BB defpoint 0.125 1.125 /C defpoint -0.375 2.625 /CC defpoint 3.125 0.125 /D defpoint 5.625 0.625 /DD defpoint A AA droite B BB droite C CC droite D DD droite