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 Author Comment/Response Sami 09/04/12 12:48pm In Response To 'Re: Collecting terms in an expression'---------Hi Bill, Thanks a lot for replying to my post. I think I made a mistake describing my question. Summarizing the issue: I have a Multinormal Distribution Function of force components: Fx[1], Fy[1], Fz[1] ..... Fx[n], Fy[n], Fz[n]. in the form of Exp[ a Fx[1]^2 + a Fy[1]^2 + a Fz[1]^2 +......+ c Fx[n]^2 + c Fy[n]^2+c Fz[n]^2] Now, I simply want Mathematica to simplify this function with this rule: Fx[1]^2+Fy[1]^2+Fz[1]^2=F[1]^2, ...., Fx[n]^2 +Fy[n]^2+Fz[n]^2=F[n]^2 So that at the end, it gives me Exp[ a F[1]^2 + b F[2]^2+..... c F[n]^2].... I do really appreciate your help. I am new to Mathematica (this is my first work in Mathematica) and it is actually for my research. Btw, Bill, one of your posts in physicsforum regarding multiple Integrals solved my other problem in this code! Thanks for that too! URL: ,

 Subject (listing for 'Collecting terms in an expression') Author Date Posted Collecting terms in an expression Sami 09/02/12 3:01pm Re: Collecting terms in an expression Bill Simpson 09/03/12 11:34pm Re: Re: Collecting terms in an expression Sami 09/04/12 12:48pm Re: Re: Re: Collecting terms in an expression Bill Simpson 09/04/12 10:29pm Re: Re: Re: Re: Collecting terms in an expression Sami 09/06/12 00:45am Re: Re: Re: Re: Re: Collecting terms in an expr... Bill Simpson 09/06/12 11:36am Re: Re: Re: Re: Collecting terms in an expression Sami 09/06/12 01:14am Re: Re: Re: Re: Re: Collecting terms in an expr... Bill Simpson 09/07/12 2:57pm Re: Re: Re: Re: Re: Re: Collecting terms in an ... Sami 09/08/12 03:26am Re: Re: Re: Re: Re: Re: Re: Collecting terms in... Sami 09/11/12 8:12pm Re: Re: Re: Re: Re: Re: Re: Re: Collecting term... Bill Simpson 09/14/12 03:31am
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