It is finished! I am very excited about the new features, especially
- the help window,
- the level ranges,
- the filled implicit plots,
- the PDF export,
- the aspect and font settings,
- the improvements in the notebook interface,
and many more small details and fixes. I thank all those who took the time to write to me about problems or suggestions.
Most changes I have already blogged about. Here I want to show you examples ranges of level lines.
>plot2d("(x^2+y^2-1)^3-x^2*y^3",r=1.3, ... style="#",color=red,<outline, ... level=[-2;0],n=100):
This is an implicit 2D plot showing a region of a function of the form
\(a \le f(x,y) \le b\)
The plot3d() function can now show regions of level lines. I talked about this in an earlier blog. But it took me some time to implement it.
The only change to achieve this is to set dl=0.005. This will change the level lines from a single row vector to two row vectors with lower and upper bounds of the regions.
There is much more to say about the new version. For now, I stop here.