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Hook up Raspberry Pi via Ethernet to laptop without router? [closed]
...twork card supports Auto MDI-X. This is the case for most recent hardware, including for example the 2012 Lenovo T430 I tested with, which has an "Intel® 82579LM Gigabit Network Connection" which documents support for Auto MDI-X.
Now you can also:
access the Internet from the PI through your Ubu...
Advantages of Antlr (versus say, lex/yacc/bison) [closed]
...ron compiler is perhaps the most compact one with about 4000 lines of code including code generation, but Oberon is a very compact language with only about 40 production rules.
As somebody has pointed out already, a big plus for ANTLR is the graphical IDE tool, called ANTLRworks. It is a complete g...
Set every cell in matrix to 0 if that row or column contains a 0
...os which of course would destroy the matrix for the other rows and cols:
#include <iostream>
/**
* The idea with my algorithm is to delay the writing of zeros
* till all rows and cols can be processed. I do this using
* recursion:
* 1) Enter Recursive Function:
* 2) Check the row and col of ...
Differences between socket.io and websockets
...tibility
As of June 2016 WebSocket works on everything except Opera Mini, including IE higher than 9.
This is the browser compatibility of WebSocket on Can I Use as of June 2016:
See http://caniuse.com/websockets for up-to-date info.
...
What is the difference between Amazon SNS and Amazon SQS?
...bscribers. You can have heterogeneous subscribers for one given SNS topic, including Lambda and SQS, for example. You can also send SMS messages or even e-mails out of the box using SNS. One thing to consider in SNS is only one message (notification) is received at once, so you cannot take advantage...
Why should a function have only one exit-point? [closed]
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SQL update fields of one table from fields of another one
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Selecting multiple columns in a pandas dataframe
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To get the columns from C to E (note that unlike integer slicing, 'E' is included in the columns):
df.loc[:, 'C':'E']
Out:
C D E
R0 61 16 73
R1 30 80 7
R2 80 27 44
R3 47 30 84
R4 41 62 1
R5 5 58 0
...
Same works for selecting rows based on labels. Get the...