• To: mathgroup at smc.vnet.net
• Subject: [mg80505] Re: From PaddedForm to numbers?
• From: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>
• Date: Thu, 23 Aug 2007 06:26:15 -0400 (EDT)
• Organization: The Open University, Milton Keynes, UK
• References: <faj6fp\$9gt\$1@smc.vnet.net>

```Curtis Osterhoudt wrote:

>    Given a number in PaddedForm, how can I easily convert it to a number which
> can be worked with? This would be the analogue of ToExpression[
> some_string_representing_a_number ].

Assuming I have correctly guessed how you could possibly use
(incorrectly?) *PaddedForm*, you can use *First* to extract the original
number. (Use FullForm[y] to see the structure of y.) For instance,

In[1]:= y = PaddedForm[1.23456, {3, 4}]

TagBox[
InterpretationBox["\<\" 1.2300\"\>",
1.23456,
AutoDelete->True],

In[2]:= % + 1000 == y + 1000

Out[2]= 1001.23 == 1000 + \!\(\*
TagBox[
InterpretationBox["\<\" 1.2300\"\>",
1.23456,
AutoDelete->True],

In[3]:= %% + 1000 == First @ y + 1000

Out[3]= True

--
Jean-Marc

```

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