Re: FullSimplify failure
- To: mathgroup at smc.vnet.net
- Subject: [mg38479] Re: [mg38476] FullSimplify failure
- From: Andrzej Kozlowski <akoz at mimuw.edu.pl>
- Date: Fri, 20 Dec 2002 04:24:18 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
In this particular case, yes. In[14]:= FullSimplify[TrigToExp[ArcSin[(Sqrt[2] + Sqrt[6])/4]]] Out[14]= (5*Pi)/12 In[15]:= FullSimplify[TrigToExp[ArcCos[(Sqrt[3] - 1)/(2*Sqrt[2])]]] Out[15]= (5*Pi)/12 Of course this is not guaranteed to work in much more complicated cases. Andrzej Kozlowski Yokohama, Japan http://www.mimuw.edu.pl/~akoz/ http://platon.c.u-tokyo.ac.jp/andrzej/ On Wednesday, December 18, 2002, at 03:54 PM, Carlos Felippa wrote: > Print[ FullSimplify[ArcCos[(Sqrt[3]-1)/(2*Sqrt[2])]]//InputForm]; > Print[ FullSimplify[ArcSin[(Sqrt[2]+Sqrt[6])/4]]//InputForm]; > > (5*Pi)/12 > > ArcSin[(Sqrt[2] + Sqrt[6])/4] > > > Both answers should be 5*Pi/12. This is fouling up a script. > Is there a way to get FullSimplify to do exactly that for > the ArcSin? > > Carlos Felippa > > >