Hi, I ran across the following post and thought I would pass it along.
http://avinashv.net/2008/04/python-decorators-syntactic-sugar/ For those of us who were weened on Maple, the post describes a very nice way to get the "options remember" functionality that is built into Maple in python (and Sage). Maybe there is another (or a better) way to do this in Sage proper, but I couldn't find one looking through the documentation. For those that don't know what "options remember" does in Maple, it is a declaration in a proc which tells Maple to build an "input" -> "output" dictionary for the proc. So if you call a proc you've defined with an input for the first time, it calculates it as usual. The second time you call the proc with the same input, it just looks up the output from the table, bypassing the possibly time consuming calculation. This is very useful in alot of computational situations, especially combinatorial functions that are defined recursively (like the fibonacci example given and profiles in the post above). -BFJ --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
