Hi, How can I manipulate objects with indices? I need to do things like
a_i + b_i * c_{j+1} using a TeX style notation (so that in the last term, the index is j +1) where i and j are symbolic. In Mathematica this would be something like a[i] + b[i] * c[j+1] but something like that presumably cannot work in Sage, since [] are reserved for other things! I then need to be able to manipulate such expressions to act on them with functions according to the values of different indices in each term: if there is a product a_i b_i with two equal indices then I need to apply a different rule than if the indices are different( a_i b_j with j not equal to i ). Could somebody please tell me what syntax I need (if indeed this is possible...)? Thanks and best wishes, David. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org