Mike, Thank you for responding! delta is calculated by taking:
delta(m,n) = ((m-1)(n-1)/2)+(gcd(m,n)-1/2) The issue I'm running into is getting sage to cycle these partitions through this calculation. I can get the partitions and do it all by hand, but that's an awful pain. ~Erick On Apr 3, 5:51 pm, "Mike Hansen" <[EMAIL PROTECTED]> wrote: > Hi Erick, > > How do you calculate the delta invariant? (This is not my area of > math.) How large of m and n do you want to work with? For example, > here is some Sage code to generate all the integer partitions of 40: > > sage: time l = Partitions(40).list() > CPU times: user 0.50 s, sys: 0.03 s, total: 0.53 s > Wall time: 0.56 > sage: len(l) > 37338 > sage: l[:5] > [[40], [39, 1], [38, 2], [38, 1, 1], [37, 3]] > > --Mike --~--~---------~--~----~------------~-------~--~----~ 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 URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
