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MathGroup Archive 2005

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Re: 2.9.2 How Input and Output Work

  • To: mathgroup at smc.vnet.net
  • Subject: [mg61858] Re: [mg61834] 2.9.2 How Input and Output Work
  • From: Pratik Desai <pdesai1 at umbc.edu>
  • Date: Wed, 2 Nov 2005 04:09:26 -0500 (EST)
  • References: <200511010539.AAA15747@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Steven T. Hatton wrote:

>2.9.2 How Input and Output Work of the online help states that:
>
>"When you type something like x^2 what Mathematica at first sees is just the
>string of characters x, ^, 2. But with the usual way that Mathematica is
>set up, it immediately knows to convert this string of characters into the
>expression Power[x, 2]."
>
>What does "immediately" mean in this context?  As soon as I press the '2'
>key?  When I evaluate the cell?  If it is the former, then why do I see
>"Cell[BoxData[SuperscriptBox["x", "2"]], "Input"]" when I view the
>expression?
>  
>
For Version 5.1
When I type in x^2 and Ctrl+Shift+E I get

 >>Cell[BoxData[
    RowBox[{"x", "^", "2"}]], "Input",
  CellLabel->"In[8]:="]

When it type Superscript[x,2]
 >>Cell[BoxData[
    RowBox[{
      RowBox[{"Superscript", "[",
        RowBox[{"x", ",", "2"}], "]"}],
      "\[IndentingNewLine]"}]], "Input",
  CellLabel->"In[9]:="]

I that what you expect to see

Pratik .

-- 
Pratik Desai
Graduate Student
UMBC
Department of Mechanical Engineering
Phone: 410 455 8134



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