Hi, in current master (python 2.7) this works for me:
trigsimp(Matrix([sin(x), cos(x)])) It is equivalent to the call: trigsimp(Matrix([sin(x), cos(x)]), method = "matching") however the following do not: trigsimp(Matrix([sin(x), cos(x)]), method = "fu") trigsimp(Matrix([sin(x), cos(x)]), method = "groebner") trigsimp(Matrix([sin(x), cos(x)]), method = "combined") They produce the following Error: AttributeError: ImmutableMatrix has no attribute normal. I dont think that this should be this way. Anyway: A workaround is to use Matrix.applyfunc(...) Best, Carsten. -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sympy+unsubscr...@googlegroups.com. To post to this group, send email to sympy@googlegroups.com. Visit this group at http://groups.google.com/group/sympy?hl=en-US. For more options, visit https://groups.google.com/groups/opt_out.
