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MathGroup Archive 2007

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Re: Re: Guessing "exact" values

  • To: mathgroup at smc.vnet.net
  • Subject: [mg76288] Re: [mg76228] Re: Guessing "exact" values
  • From: Murray Eisenberg <murray at math.umass.edu>
  • Date: Sat, 19 May 2007 04:33:44 -0400 (EDT)
  • Organization: Mathematics & Statistics, Univ. of Mass./Amherst
  • References: <200705181009.GAA12917@smc.vnet.net>
  • Reply-to: murray at math.umass.edu

When I run that code and click the link, my browser shows a "File not 
found!" error page.

Dana DeLouis wrote:
> Hi.  This is not the best solution, but here's one idea I use.
> It's not the best solution, because I can't find a way to make Mathematica's
> Hyperlinks dynamic.
> In other words, once a hyperlink is made (Entered), it appears the address
> is locked in stone.
> Maybe an expert can jump in and make this dynamic.
> 
> A number we know nothing about...(??)
> n = 6.283185307179586
> 
> Set the variable to something you would like to use.  For me...
> NumberToSearch = n; 
> 
> Re-Enter this equation (Shift Enter), and then click the link.
> 
> Hyperlink["Click Here: Plouffe's Inverter", 
>    StringReplace["http://bootes.math.uqam.ca/cgi-bin/ipcgi/lookup.\
>   pl?Submit=GO+&number=#&lookup_type=simple", 
>      "#" :> ToString[Evaluate[NumberToSearch], InputForm, 
>          NumberMarks -> False]]]
> 
> The above click shows it might be 2 Pi.
> 
> For your example, I took the full value:
> n=10.92477796076938
> 
> This number didn't work.  Sometimes it won't work if the number is large.
> I don't know what "large" means, but the program really works with
> fractions.
> 
> I decided to divided the number by 3.
> 
> NumberToSearch = 10.92477796076938/3
> 3.641592653589793
> 
> If I re-enter the Hyperlink, and click the link, the solution is Pi+1/2.
> Multiply by 3 to get your equation.
> 
> Reference:  http://pi.lacim.uqam.ca/eng/

-- 
Murray Eisenberg                     murray at math.umass.edu
Mathematics & Statistics Dept.
Lederle Graduate Research Tower      phone 413 549-1020 (H)
University of Massachusetts                413 545-2859 (W)
710 North Pleasant Street            fax   413 545-1801
Amherst, MA 01003-9305


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