trigonometric simplification



Stavros Macrakis <macrakis at alum.mit.edu> wrote:

   I'd think that Maxima should do range reductions like?cos(23/5*%pi) => cos(3/5*%pi) by default, and even for that matter?cos
   (x+23/5*%pi) => cos(x+3/5*%pi). ?Perhaps do this with %piargs='all and make that the default?

You should clarify what what you intend for negative angels:

  cos(-23/5*%pi) => cos(2/5*%pi) ???

While this isn't a very problematic issue, it ought be specified.  cos
is symmetric about zero, but this property is more evident if the domain
were reduced to -pi..+pi instead.  Would this matter anywhere?