On Tue, Jun 12, 2012 at 3:20 AM, Kjetil brinchmann Halvorsen <[email protected]> wrote: > This MUST be a bug: > > In [29]: ( sin(s)*sin(t)-cos(s)*cos(t)).trigsimp() > Out[29]: sin(s)⋅sin(t) - cos(s)⋅cos(t) > It works in my trigsimp branch (https://github.com/sympy/sympy/pull/772 which I closed for lack of interest):
>>> cos(x+y).expand(trig=1) -sin(x)*sin(y) + cos(x)*cos(y) >>> simplify(_) cos(x + y) /c -- You received this message because you are subscribed to the Google Groups "sympy" group. 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/sympy?hl=en.
