Re: find the maxima in a function

*To*: mathgroup at smc.vnet.net*Subject*: [mg97154] Re: find the maxima in a function*From*: Alexei Boulbitch <Alexei.Boulbitch at iee.lu>*Date*: Fri, 6 Mar 2009 04:27:56 -0500 (EST)

Hi, Oli, what's wrong with this function? Can you calculate derivatives? The derivative from this function is typically calculated in mind, e.g. without going to paper-pencil tools, let along Mathematica. Ok, check Mathematica Help/D, if you cannot. Have success, Alexei Hallo, how can one find the maxima by using mathematica for the following function: f[x_] := 1/(8*(Pi*t)^(3/2)) * Exp[(-(x^2 + y^2 + z^2)/4*t)] i mean, the first derivation equal Zero. Thanks in advance.. Oli. -- Alexei Boulbitch, Dr., Habil. Senior Scientist IEE S.A. ZAE Weiergewan 11, rue Edmond Reuter L-5326 Contern Luxembourg Phone: +352 2454 2566 Fax: +352 2454 3566 Website: www.iee.lu This e-mail may contain trade secrets or privileged, undisclosed or otherwise confidential information. If you are not the intended recipient and have received this e-mail in error, you are hereby notified that any review, copying or distribution of it is strictly prohibited. Please inform us immediately and destroy the original transmittal from your system. Thank you for your co-operation.