Re: [Maxima-discuss] Problem with draw2d(implicit(...))

[Michel T. <ta...@lp...>]

You are right, this is closer to what the plot should look like.  I have 
also tried with maple

as said by Thomas, it gives a very poor plot which looks quite the same 
as your own.

Apparently this is a very difficult problem for those plotters since the 
"rabbit ears" should

extend to (0,0) as shown by the plot of the Puiseux series. Now i 
understand how the Puiseux

developments are to be connected, precisely by these rabbit ears. You 
can see that on some range of

x there are 5 solutions to f(x,y)=0  and less in other ranges because 
some solutions become imaginary.

Thanks a lot.

Le 20/03/2020 à 22:23, Gunter Königsmann a écrit :
> draw3d(
>      contour='map,key="curve",
>      explicit(
>          2*x^5-x^3*y+2*x^2*y^2-x*y^3+2*y^5,
>          x,-.2,.2,
>          y,-.2,.2
>      ),
>      grid=true
> )$

-- 
Michel Talon