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Sum a list of numbers in Python

I have a list of numbers such as [1,2,3,4,5...] , and I want to calculate (1+2)/2 and for the second, (2+3)/2 and the third, (3+4)/2 , and so on. How can I do that? ...
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Find size of an array in Perl

I seem to have come across several different ways to find the size of an array. What is the difference between these three methods? ...
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Array extension to remove object by value

However, I get an error on var index = find(self, object) 15 Answers 15 ...
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Android: Generate random color on click?

I have an ImageView , in which I am programmaticly creating drawables and presenting them to the user. My goal is to click on said ImageView and change the drawable's color. ...
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How do I delete an exported environment variable?

Before installing gnuplot, I set the environment variable GNUPLOT_DRIVER_DIR = /home/gnuplot/build/src . During the installation, something went wrong. ...
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Json.net serialize/deserialize derived types?

json.net (newtonsoft) I am looking through the documentation but I can't find anything on this or the best way to do it. ...
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JavaScript: Class.method vs. Class.prototype.method

What is the difference between the following two declarations? 5 Answers 5 ...
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Insert/Update Many to Many Entity Framework . How do I do it?

I'm using EF4 and new to it. I have a many to many in my project and cannot seem to work out how to insert or update. I have build a small project just to see how it should be coded. ...
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snprintf and Visual Studio 2010

I'm unfortunate enough to be stuck using VS 2010 for a project, and noticed the following code still doesn't build using the non-standards compliant compiler: ...
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Count how many records are in a CSV Python?

I'm using python (Django Framework) to read a CSV file. I pull just 2 lines out of this CSV as you can see. What I have been trying to do is store in a variable the total number of rows the CSV also. ...