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Re: TrigExpand - Odd behavior


Bob Stagat wrote:
> Try executing the following three lines and explain the last result...
> 
> Cos[45 Degree]
> 
> Cos[x+45 Degree]
> 
> Cos[x+45 Degree]//TrigExpand
> 
> Thanks...
> ~ BS ~
> 
It's the same as TrigExpand[Cos[x+45*y]]/.y->Degree

I guess you wanted Cos[x+FunctionExpand[45 Degree]]//TrigExpand

-- 
Peter Pein
Berlin


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