Re: Re: Re: Re: Mathematica can't win against Tiger Woods

• To: mathgroup at smc.vnet.net
• Subject: [mg19888] Re: [mg19877] Re: [mg19811] Re: [mg19765] Re: [mg19677] Mathematica can't win against Tiger Woods
• From: "Andrzej Kozlowski" <andrzej at tuins.ac.jp>
• Date: Sun, 19 Sep 1999 18:47:36 -0400
• Sender: owner-wri-mathgroup at wolfram.com

```This is indeed mysterious and somewhat worrying but still one can deal with
it (though admittedly one would not want to have to do this sort of thing
very often):

In[78]:=
FullSimplify[(Sqrt[2] x/2)^2 Sin[x/2]^2,
ComplexityFunction -> (Count[{#}, _Sin, Infinity] &)]

Out[78]=
1   2
-(-) x  (-1 + Cos[x])
4
--
Andrzej Kozlowski
Toyama International University
JAPAN
http://sigma.tuins.ac.jp
http://eri2.tuins.ac.jp

----------
>From: Leszek Sczaniecki <leszek2 at home.com>
>To: mathgroup at smc.vnet.net
>Subject: [mg19888] [mg19877] Re: [mg19811] Re: [mg19765] Re: [mg19677] Mathematica can't win against Tiger Woods
>Date: Sun, Sep 19, 1999, 2:20 PM
>

> Or perhaps, for what
> technical reason it can do this simplification
>
> In[1]:= FullSimplify[(Sqrt[2] 1/2))^2 Sin[x/2]^2]
>
> Out[1]=
> 1/4 (1 - Cos[x])
>
> but fails here
>
> In[2]:= FullSimplify[(Sqrt[2] x/2))^2 Sin[x/2]^2]
>
> Out[2]=
> 1/2 x^2 Sin[x/2]^2
> ?

```

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