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~x + ~y == ~(x + y) is always false?
Does this code always evaluate to false? Both variables are two's complement signed ints.
11 Answers
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How to open, read, and write from serial port in C?
I am a little bit confused about reading and writing to a serial port. I have a USB device in Linux that uses the FTDI USB serial device converter driver. When I plug it in, it creates: /dev/ttyUSB1.
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Redis - Connect to Remote Server
I've just install Redis succesfully using the instructions on the Quick Start guide on http://redis.io/topics/quickstart on my Ubuntu 10.10 server. I'm running the service as dameon (so it can be run by init.d)
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How to include “zero” / “0” results in COUNT aggregate?
I've just got myself a little bit stuck with some SQL. I don't think I can phrase the question brilliantly - so let me show you.
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How do I put two increment statements in a C++ 'for' loop?
I would like to increment two variables in a for -loop condition instead of one.
8 Answers
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How to get the first element of an array?
How do you get the first element from an array like this:
31 Answers
31
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Does pandas iterrows have performance issues?
I have noticed very poor performance when using iterrows from pandas.
6 Answers
6
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Is a Python list guaranteed to have its elements stay in the order they are inserted in?
If I have the following Python code
6 Answers
6
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How to change line width in ggplot?
Datalink:
the data used
5 Answers
5
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Google Maps: how to get country, state/province/region, city given a lat/long value?
I need a list of countries, states & cities based on a collection of lat/long values I have. I need to store this information in a manner that hierarchy is preserve and without duplicates (e.g. "USA" and "United States" and "United States of America" are the same country; I only want one instance of...