Greetings all, I have been fiddling around with implicit_plot3d for most of the day and I have noticed that sometimes, the range of values for z are partially disregarded.
sage: implicit_plot3d((x^2)/2+(y^2)/2+(z^2)/2,(x,-5,5),(y,-5,5),(z, 0,5),contour=2) should produce only the northern hemisphere of the sphere of radius sqrt(8) but it produces the entire sphere. Meanwhile sage: implicit_plot3d((x^2)/2+(y^2)/2+(z^2)/2,(x,0,5),(y,0,5), (z,-5,5),contour=2) only produces the portion of the sphere in the first octant, rather than a full quarter of the sphere. Of course, the z-range is not always disregarded. sage: implicit_plot3d((x^2)/2+(y^2)/2+(z^2)/2,(x,0,5),(y,-5,5), (z,-5,5),contour=2) produces the expected output. This happens on both 4.1.1 (on sagenb) and 4.1.2 (my installation). For convenience, I've published the sagenb notebook. http://sagenb.org/pub/830/ I have tried tracing through the code, but I was quickly overwhelmed by the task. -Micah --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
