Dear developers, I looked into sage/symbolics/expressions.pyx and the definition of simplify_trig().
This funciton applies trigsimp and trigexpand from Maxima and as a result, sage: (tan(3*x)).simplify_full() gives terrible result (4*cos(x)^2 - 1)*sin(x)/(4*cos(x)^3 - 3*cos(x)) Despite the fact ther there is more elaborated interface to expansion of trigonometric functions in expand_trig, simplify_full blindly applies trigexpand. I was not able to find in tracs, why has this bee added. Can out find out why is this trigexpand function present in simplify_trig()? Are there objections to remove it? many thanks Robert btw: I improved support for logcontract at http://trac.sagemath.org/sage_trac/ticket/7334 , feel free to review or add comments. --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
