MathGroup Archive 2012

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

Search the Archive

How to get this gaussian integral result?


 Integrate[
 x1^(n1) x2^(n2)  x3^(n3) Exp[
   a x1 x1 + b x2 x2 + c x3 x3 + d12 x1 x2 + d23 x2 x3 + d13 x1 x3 +
    d], {x1, -Infinity, Infinity}, {x2, -Infinity,
  Infinity}, {x3, -Infinity, Infinity}].  n1,n2,n3 are Natural numbers.  I still cannot get the general result ,although mathematica takes so much time. Can you help me about this?



  • Prev by Date: Barchart with ChartElements doesn't want to plot negative.
  • Next by Date: Re: ReplacePart, Multiple replacements in one time
  • Previous by thread: Barchart with ChartElements doesn't want to plot negative.
  • Next by thread: Re: How to get this gaussian integral result?