Présentation de 322.jps

/syracuse/bbgraf/albums/coniques_02/322.jpg
%% auteur : gh %% conique_ellipse_cercle_ppal.jps 800 setwidth 800 setheight -2.5 2.5 setxrange -2.5 2.5 setyrange /O {0 0} def /a 2 def /b 1 def /c {a 2 exp b 2 exp sub sqrt} def /F {c neg 0} def /F' {c 0} def /Dx {a 2 exp c div neg 0} def /Dx' {a 2 exp c div 0} def /D {Dx Dx 0 1 addv} def /D' {Dx' Dx' 0 1 addv} def /X {Cos a mul} def /Y {Sin b mul} def traceaxes axesarrow <tex> $$O$$ </tex> O [3 dup] dltexlabel 6 setlinewidth rouge 0 pi 2 mul settrange {X} {Y} courbeparam bleu O a cercle 3 setlinewidth /t {pi 3 div} def /M {t dup X Y} def /N {t Cos a mul t Sin a mul} def /P {t Cos a mul 0} def noir <tex> $A$ </tex> a 0 [3 dup] urtexlabel <tex> $B$ </tex> 0 b [3 dup] urtexlabel <tex> $M$ </tex> M [3 dup] urtexlabel <tex> $N$ </tex> N [3 dup] urtexlabel <tex> $\theta$ </tex> M P milieu O milieu O milieu [3 dup] urtexlabel O N (-) line pointilles P N (-) line continu /arrowangle -5 store 1 0 O N 0.2 (->) tripointarc