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Regex to remove all (non numeric OR period)

I need for text like "joe ($3,004.50)" to be filtered down to 3004.50 but am terrible at regex and can't find a suitable solution. So only numbers and periods should stay - everything else filtered. I use C# and VS.net 2008 framework 3.5 ...
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Rails 3 datatypes?

Where can I find a list of data types that can be used in rails 3? (such as text, string, integer, float, date, etc.?) I keep randomly learning about new ones, but I'd love to have a list I could easily refer to. ...
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good example of Javadoc [closed]

... How about the JDK source code, but accessed through a 3rd party like docjar? For example, the Collections source. That way, there's no big download. share | improve this answer...
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Iterating over a numpy array

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HtmlString vs. MvcHtmlString

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Change color of PNG image via CSS?

... the color of a PNG file with filters. body { background-color:#03030a; min-width: 800px; min-height: 400px } img { width:20%; float:left; margin:0; } /*Filter styles*/ .saturate { filter: saturate(3); } .grayscale { filter: grayscale(100%); } .contrast { ...
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Difference between `mod` and `rem` in Haskell

... 183 They're not the same when the second argument is negative: 2 `mod` (-3) == -1 2 `rem` (-3) =...
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Float vs Decimal in ActiveRecord

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How to use the 'sweep' function

... edited Jul 25 '19 at 10:13 Rekyt 34411 silver badge88 bronze badges answered May 3 '11 at 17:52 ...