Services & ResourcesWolfram ForumsMathGroup Archive

[Date Index] [Thread Index] [Author Index]

Minimize

• To: mathgroup at smc.vnet.net
• Subject: [mg93562] Minimize
• From: Artur <grafix at csl.pl>
• Date: Fri, 14 Nov 2008 06:36:09 -0500 (EST)
• References: <gfgqib$dm1$1@smc.vnet.net> <gfh3ca$g1d$1@smc.vnet.net> <200811140209.VAA16497@smc.vnet.net>
• Reply-to: grafix at csl.pl

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

• Follow-Ups:
  • QuickFactorInteger
    • From: Artur <grafix@csl.pl>
  • Re: Minimize
    • From: Andrzej Kozlowski <akoz@mimuw.edu.pl>
  • Re: Minimize
    • From: Carl Woll <carlw@wolfram.com>

• References:
  • Re: Model the surface of an ellipsoid
    • From: Mayneord <xrayspectrum@googlemail.com>