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Re: usage of TrigToExp?


zatuch wrote:
> Hello,
> Results from function TrigToExp seemed weird to me. Could anyone
> please give me a good explanation on its usage. Thanks a lot.
> 
> In[41]:= TrigToExp[Cos[2 x]]
> During evaluation of In[41]:= Nonreal::warning: Nonreal number
> encountered.
> Out[41]= Nonreal
> 
> In[43]:= TrigToExp[Cos[y] Sin[x]]
> Out[43]= 0

It looks as though you loaded the old Miscellanous`RealOnly package. Try 
again in a fresh session, without loading RealOnly.

-- 
Helen Read
University of VErmont


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