Byungchul Cha wrote: > > I am using sage for my calc III students. The following short code > produces about 500 points on a sphere. > > pts=[]; number_of_points=500 > for t1 in srange(0, pi, n(pi/sqrt(number_of_points))): > for t2 in srange(0, 2*pi, n(2*pi/sqrt(number_of_points))): > pts.append((sin(t1)*cos(t2), sin(t1)*sin(t2), cos(t1))) > show(point(pts)) > > My question is, though, that sage takes, it seems to me, longer time > to execute this than I would expect. (CPU time: 6.66 s, Wall time: > 48.84 s) Am I making some stupid mistake in the above code, or sage > does something unnecessary, which causes the delay? In my (naive) > point of view, plotting as many as 500 points shouldn't take that long > time... Thanks.
Try putting from math import sin, cos before the rest of your code to use the double precision C-library's sin and cosine functions instead. William --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
