Hello, Functions plot is fine with singular functions as
plot (sin(1/x), x, 0, 5) Plot has also a symbolic option detect_poles=True. But this option isn't designed for theses plots. There are unpleasant vertical lines. plot (floor(10*x), x, 0, 2) plot (x*floor(1/x), x, 0, 2) plot (arctan ((tan(x)^2-1)/(2*tan(x)), x, 0, 2) Is it easy to change the adaptative algorithm ? I don't feel cool whith the plot.py file. The algorithm seems to be : while "estimated point is too far from computed points" and "step is large" : add interpoled points by while "estimated point is too far from computed points" and "step is large" : add interpoled points if "the right option is set" and "step is small" and "there is a jump of some pixels" then draw a new curve. I don't think it's too hard to compute about one function call per pixel, and then the mathematic are more respected ! It's not pleasant to build a large list of points and then plot theses points (and not the polygonal line) because the speed isn't constant for any curves. Francois --~--~---------~--~----~------------~-------~--~----~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
