Re: Minimize
- To: mathgroup at smc.vnet.net
- Subject: [mg93569] Re: [mg93562] Minimize
- From: Andrzej Kozlowski <akoz at mimuw.edu.pl>
- Date: Sat, 15 Nov 2008 06:02:35 -0500 (EST)
- References: <gfgqib$dm1$1@smc.vnet.net> <gfh3ca$g1d$1@smc.vnet.net> <200811140209.VAA16497@smc.vnet.net> <200811141136.GAA13071@smc.vnet.net>
On 14 Nov 2008, at 20:36, Artur wrote:
> Dear Mathematica Gurus,
> What Mathematica procedure to use to minimize expotential finction
> e.g.
> Minimize[Abs[3^d + 5^f - 2^7], {d, f}]
> where we can push: d and f are both Integers
>
> NMinimize[Abs[3^d + 5^f - 2^7], {d, f}]
> Mathematica answer is:
> {2.66454*10^-14, {d -> 2.03248, f -> 2.96773}}
>
> good answer is:
> {d,f}={1,3}
>
> Best wishes
> Artur
>
One possible approach is to read the documentation.
NMinimize[{Abs[3^d + 5^f - 2^7], Element[d | f, Integers]}, {d, f}]
{0., {d -> 1, f -> 3}}
Andrzej Kozlowski
- References:
- Re: Model the surface of an ellipsoid
- From: Mayneord <xrayspectrum@googlemail.com>
- Minimize
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