I just got burned by the fact that the sage documentation does not specify the branch cut of the Ei function. A simple experiment show that it lies along the positive real axis.
In Maple it apparently lies along the negative real axis...(this is specified in the documentation). In principle the documentation of a complex function should specify its branchcuts.... Michel --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@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-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
