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MathGroup Archive 1998

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Re: calculation


  • To: mathgroup@smc.vnet.net
  • Subject: [mg12008] Re: calculation
  • From: Bill Bertram <wkb@ansto.gov.au>
  • Date: Fri, 17 Apr 1998 03:40:44 -0400
  • Organization: ANSTO
  • References: <6gr69a$8lo@smc.vnet.net>

Saeed Esmaily Rashid wrote:
> 
> Hello!
> 
> My name is Saeed and i'm studying physics. I have a problem which ihope
> someone can help me with it. I have an equation
> 
> .001422409738*R^(73/80)*(R^(1/2)-1)^(-13/40) == .04
> 
> i'm using the Solve function in Mathematica 3.0 to solve it for R, but
> it calculats endlessly and takes very long time. the question is that
> is there any way to optimize this equation or using another function in
> Mathematica 3.0 to make it faster to calculate?
> 


Try;  FindRoot[.001422409738*R^(73/80)* ...,{R,100}]

Cheers,
  Bill



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