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Converting NumPy array into Python List structure?
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answered Dec 27 '09 at 15:31
Peter HansenPeter Hansen
18.1k22 gold badges4343 silver badges6868 bronze badges
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'printf' vs. 'cout' in C++
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360
I'm surprised that everyone in this question claims that std::cout is way better than printf, ev...
mongo - couldn't connect to server 127.0.0.1:27017
...hing to note is the log trace provided does not cover the "Fri Nov 9 16:44:06" of your mongo timestamp.
Can you:
Provide the command line arguments (if any) used to start your
mongod process
Provide the log file activity from the mongod startup as well as
logs during the mongo shell startup atte...
When should I use Struct vs. OpenStruct?
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180
With an OpenStruct, you can arbitrarily create attributes. A Struct, on the other hand, must ha...
Calculating frames per second in a game
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100
You need a smoothed average, the easiest way is to take the current answer (the time to draw th...
Get exit code of a background process
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130
1: In bash, $! holds the PID of the last background process that was executed. That will tell y...
Count number of matches of a regex in Javascript
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edited Apr 10 '18 at 20:52
Trevor
11.4k1111 gold badges6767 silver badges9090 bronze badges
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Difference between Big-O and Little-O Notation
... O(g) says, essentially
For at least one choice of a constant k > 0, you can find a constant a such that the inequality 0 <= f(x) <= k g(x) holds for all x > a.
Note that O(g) is the set of all functions for which this condition holds.
f ∈ o(g) says, essentially
For every c...
How do I use valgrind to find memory leaks?
...a Valgrind report that looks like this:
HEAP SUMMARY:
in use at exit: 0 bytes in 0 blocks
total heap usage: 636 allocs, 636 frees, 25,393 bytes allocated
All heap blocks were freed -- no leaks are possible
ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
ERROR SUMMARY: 0 error...
What is the difference between tinyint, smallint, mediumint, bigint and int in MySQL?
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tinyint | 1 byte -128 to 127 0 to 255
smallint | 2 bytes -32768 to 32767 0 to 65535
mediumint | 3 bytes -8388608 to 8388607 0 to 16777215
int/integer | 4 bytes -2147483648 to 2147483647 ...