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Re: Simplify stuck in simple expression
 To: mathgroup at smc.vnet.net
 Subject: [mg50178] Re: Simplify stuck in simple expression
 From: carlos at colorado.edu (Carlos Felippa)
 Date: Thu, 19 Aug 2004 06:28:08 0400 (EDT)
 References: <cfsi9a$a78$1@smc.vnet.net> <200408180520.BAA06011@smc.vnet.net> <cfv4hu$8jd$1@smc.vnet.net>
 Sender: ownerwrimathgroup at wolfram.com
Andrzej Kozlowski <akoz at mimuw.edu.pl> wrote in message news:<cfv4hu$8jd$1 at smc.vnet.net>...
> You can use:
>
>
> FullSimplify[Factor //@ ((2  Sqrt[72*(1 + a*b)^2 + 4])/
> (2*a))]
>
>
> (1  Sqrt[18*a*b*(a*b + 2) + 19])/a
>
>
> However, as this has the same LeafCount as the expression you desire
> you, would need to find a suitable ComplexityFunction to obtain the
> answer you want.
>
>
My objective has a smaller LeafCount:
Print[LeafCount[(2  Sqrt[72*(1 + a*b)^2 + 4])/ (2*a)]];
26
Print[LeafCount[(1  Sqrt[18*(1 + a*b)^2 + 1])/ a]]
23
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