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Linux vi arrow keys broken in insert mode

My arrow keys don't work in vi in insert mode at home, they just each insert a newline and a capital letter, like 'A'. Is there a way to fix that? ...
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Join a list of items with different types as string in Python

I need to join a list of items. Many of the items in the list are integer values returned from a function; i.e., 9 Answ...
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How to effectively work with multiple files in Vim

I've started using Vim to develop Perl scripts and am starting to find it very powerful. 28 Answers ...
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How exactly does tail recursion work?

... The compiler is simply able to transform this int fac_times (int n, int acc) { if (n == 0) return acc; else return fac_times(n - 1, acc * n); } into something like this: int fac_times (int n, int acc) { label: if (n == 0) return acc; acc *= n--; go...
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LINQ-to-SQL vs stored procedures? [closed]

I took a look at the "Beginner's Guide to LINQ" post here on StackOverflow ( Beginners Guide to LINQ ), but had a follow-up question: ...
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How Drupal works? [closed]

...one provide a architectural overview of the Drupal 7 control flow? Perhaps in the sense of a flowchart about how a page gets generated. What additional resources would you suggest consulting with regards to how Drupal works? ...
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Git workflow and rebase vs merge questions

I've been using Git now for a couple of months on a project with one other developer. I have several years of experience with SVN , so I guess I bring a lot of baggage to the relationship. ...
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Pythonic way to find maximum value and its index in a list?

If I want the maximum value in a list, I can just write max(List) , but what if I also need the index of the maximum value? ...
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Print an integer in binary format in Java

I have a number and I want to print it in binary. I don't want to do it by writing an algorithm, Is there any built-in function for that in Java? ...
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Speed up the loop operation in R

I have a big performance problem in R. I wrote a function that iterates over a data.frame object. It simply adds a new column to a data.frame and accumulates something. (simple operation). The data.frame has roughly 850K rows. My PC is still working (about 10h now) and I have no idea about the...