Re: Magic number 23
- To: mathgroup at smc.vnet.net
- Subject: [mg41467] Re: [mg41445] Magic number 23
- From: Andrzej Kozlowski <akoz at mimuw.edu.pl>
- Date: Wed, 21 May 2003 08:02:00 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
I just noticed a quicker way: FullSimplify[TrigFactor[Cos[Pi/8]]] Sqrt[2 + Sqrt[2]]/2 Andrzej Kozlowski Yokohama, Japan http://www.mimuw.edu.pl/~akoz/ http://platon.c.u-tokyo.ac.jp/andrzej/ On Tuesday, May 20, 2003, at 11:03 pm, Andrzej Kozlowski wrote: > > You need to direct it a bit. > > In[32]:= > ToRadicals[RootReduce[FullSimplify[TrigToExp[Cos[Pi/8]]]]] > > Out[32]= > Sqrt[1/2 + 1/(2*Sqrt[2])] >