On Wed, Oct 26, 2011 at 11:10 AM, Keshav Kini <keshav.k...@gmail.com> wrote: > Hi Chappman, > > Well, unless the simple formula also refers to total_prob itself, that seems > like a pretty pointless for loop, no? The variable will continually get > overwritten, and you will just end up with the value it was assigned in the > last iteration of the loop, so unless that value referred to the previous > value, it means that all the other iterations were pointless. > > Anyway, the Python syntax (which is a subset of Sage syntax) for your loop > is approximately this: > > for i in range(5): > for j in range(i-1): > do_something() > > That's all. No "end" statements, or semicolons, or what-have-you :) Keep in > mind that indices are zero-based in Python (like C), so the first element of > a list L is L[0], and range(5) is the list [0,1,2,3,4]. By the way, this > kind of question more properly belongs in the sage-support group, rather > than the sage-devel group, which is more for discussing the development of > Sage itself.
Also, if you have a function f(i,j) which returns the i,j value you can create the whole array as a list of lists like this: [[f(i,j) for j in range(i-1)] for j in range(5)] John PS This would be better asked on sage-support. > > -Keshav > > ---- > Join us in #sagemath on irc.freenode.net ! > > -- > 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 > -- 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
