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MathGroup Archive 2005

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Re: Re: Elementary Calculation

  • To: mathgroup at smc.vnet.net
  • Subject: [mg60093] Re: [mg60084] Re: Elementary Calculation
  • From: Murray Eisenberg <murray at math.umass.edu>
  • Date: Fri, 2 Sep 2005 04:32:57 -0400 (EDT)
  • Organization: Mathematics & Statistics, Univ. of Mass./Amherst
  • References: <df668b$8m3$1@smc.vnet.net> <200509011043.GAA15011@smc.vnet.net>
  • Reply-to: murray at math.umass.edu
  • Sender: owner-wri-mathgroup at wolfram.com

   Expand[(24 + 5 Sqrt[23])^2] // InputForm
1151 + 240*Sqrt[23]

(I've appended "// InputForm" in the input line above just so the result 
can be displayed linearly, without use of a square-root symbol.)


Jean-Marc Gulliet wrote:
> Jim Dars wrote:
> 
>>Hi All,
>>
>>I'm using version 4.
>>
>>I wish to calculate (24+5*sq,rt.23)^2
>>I'm using the square root symbol from the palette.
>>
>>I want to obtain (1151 + 240*sq.rt. 23)
>>
>>I've tried Simplify and FullSimplify but I keep getting (24+5*sq,rt.23)^2.
>>
>>What command should I use?
>>
>>Thanks in advance.
>>
>>Best wishes, Jim
>>
>>
> 
> Hi Jim,
> 
> Use *Expand*
> 
> http://documents.wolfram.com/mathematica/functions/Expand
> 
> In[1]:=
> Expand[(24 + 5*Sqrt[23])^2]
> 
> Out[1]=
> 1151 + 240*Sqrt[23]
> 
> Regards,
> /J.M.
> 
> 

-- 
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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