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adding noise to a signal in python
...rmal(0,1,100)
# 0 is the mean of the normal distribution you are choosing from
# 1 is the standard deviation of the normal distribution
# 100 is the number of elements you get in array noise
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What does $1 [QSA,L] mean in my .htaccess file?
...ard to grasp, but there are quite a few examples on stackoverflow to learn from.
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JavaScript inheritance: Object.create vs new
...in my case). Regarding the undefined public property that is not inherited from the super implementation, you just need to call super in the child's constructor: SomeBaseClass.call(this). Check this fiddle: jsfiddle.net/NhQGB
– ChrisRich
Oct 28 '12 at 10:08
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How to use shared memory with Linux in C
... } else
printf("segment contains: \"%s\"\n", data);
/* detach from the segment: */
if (shmdt(data) == -1) {
perror("shmdt");
exit(1);
}
return 0;
}
Steps :
Use ftok to convert a pathname and a project identifier to a System V IPC key
Use shmget which a...
Java Enum definition
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It means that the type argument for enum has to derive from an enum which itself has the same type argument. How can this happen? By making the type argument the new type itself. So if I've got an enum called StatusCode, it would be equivalent to:
public class StatusCode extends...
Pointers in C: when to use the ampersand and the asterisk?
...e converted to pointers transparently. This highlights another way to get from a pointer to a value, I'll add it to the explanation above.
– Dan Olson
Jan 19 '10 at 18:58
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Measuring execution time of a function in C++
...ke a speed comparison . I saw several time function but ended up with this from boost. Chrono:
11 Answers
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Difference between Dictionary and Hashtable [duplicate]
...with ILookup<>: it also implements an Enumerator, which is different from the Dictionary enumerator. When a Linq operator is used on the multivaluedictionary, it can't chose which enumerator to use as it also can use IEnumerable<TKey, IGrouping<TKey, TValue>>, even though ILookup i...
Opacity of background-color, but not the text [duplicate]
... Is there any possibility that IE7 mode in IE9 is different from actual IE7? I'm asking because this code isn't working there. But if we use only three last rules (without background-color: rgb(0, 0, 0);) - all just fine
– Donotello
Aug 26 '11 at...
Find XOR of all numbers in a given range
...results in the running XORs. The f() function calculates the XOR total run from [0, a]. Take a look at this table for 4-bit numbers:
0000 <- 0 [a]
0001 <- 1 [1]
0010 <- 3 [a+1]
0011 <- 0 [0]
0100 <- 4 [a]
0101 <- 1 [1]
0110 <- 7 [a+1]
0111 <- 0 [0]
1000 <- 8 [a]
...