Re: Failure to simplify trig functions of simple rational multiples of %pi

Further to the earlier bits of this thread, I'd been hoping to be able
to produce the answer "1" with something like

l:Union(Variable l,Integer)
simplify(cos(2*%pi*l))

but instead I just get the cosine expression quoted back at me - is
there some other function I should use instead of simplify() for this,
please?

-- 

Thanks,

Dan