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How do I calculate square root in Python?

...ve to write: sqrt = x**(1/2.0), otherwise an integer division is performed and the expression 1/2 returns 0. This behavior is "normal" in Python 2.x, whereas in Python 3.x 1/2 evaluates to 0.5. If you want your Python 2.x code to behave like 3.x w.r.t. division write from __future__ import division...
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sqlite database default time value 'now'

...database per date. You can save space by just using an INTEGER(4) column, and storing the unix time via "INSERT INTO test (t) values (strftime("%s", CURRENT_TIME));" – mckoss Feb 5 '12 at 8:17 ...
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Convert XmlDocument to String

...es. It's just VS debugger. Try printing to the console or saving to a file and you'll see. As a side note: always dispose disposable objects: using (var stringWriter = new StringWriter()) using (var xmlTextWriter = XmlWriter.Create(stringWriter)) { xmlDoc.WriteTo(xmlTextWriter); xmlTextWrit...
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Writing files in Node.js

... I've tested this script using Node, and I tried changing the file path to "/home/", but I got the following error: { [Error: EACCES, open '/home/test.txt'] errno: 3, code: 'EACCES', path: '/home/test.txt' } How can I modify this script so that it will work out...
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How to create a temporary directory?

I use to create a tempfile , delete it and recreate it as a directory: 4 Answers 4 ...
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How to replace DOM element in place using Javascript?

...you @Bjorn Tipling. I've created a follow up question on how to add an id and a function to the replaced element, here: stackoverflow.com/questions/15670261/… – JDelage Mar 27 '13 at 21:58 ...
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how to append a list object to another

in C++, I have two list<T> objects A and B and I want to add all the members of B to the end of A . I've searched a few different sources and haven't found a simple solution (e.i. A.append(B); ) and this surprises me a bit. ...
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Find objects between two dates MongoDB

... good explanation on the matter, but below is something I tried out myself and it seems to work. items.save({ name: "example", created_at: ISODate("2010-04-30T00:00:00.000Z") }) items.find({ created_at: { $gte: ISODate("2010-04-29T00:00:00.000Z"), $lt: ISODate("2010-05-0...
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How to change a git submodule to point to a subfolder?

...ubmodule, you could always create a new repository that's cloned from boto and then set up a cron job to: git fetch that repository into a directory Use git filter-branch to update a branch where the subdirectory is at the top level. Add that branch of the repository as the submodule. However,...
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Android webview & localStorage

... same :) thanks a lot. I also had to make sure you target at least Android 2.1 onwards: add android:minSdkVersion="7" to your manifest and change the Project Build Target (in eclipse) to be 2.1 at least. – danmux Nov 19 '11 at 18:49 ...