大约有 35,432 项符合查询结果（耗时：0.0290秒） [XML]
Are there any O(1/n) algorithms?
...he following one:
def get_faster(list):
how_long = (1 / len(list)) * 100000
sleep(how_long)
Clearly, this function spends less time as the input size grows … at least until some limit, enforced by the hardware (precision of the numbers, minimum of time that sleep can wait, time to proce...
What's the difference between Cache-Control: max-age=0 and no-cache?
The header Cache-Control: max-age=0 implies that the content is considered stale (and must be re-fetched) immediately, which is in effect the same thing as Cache-Control: no-cache .
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Regex to check whether a string contains only numbers [duplicate]
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Mike SamuelMike Samuel
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How to create a density plot in matplotlib?
... [4.5]*3 + [5.5]*1 + [6.5]*8
density = gaussian_kde(data)
xs = np.linspace(0,8,200)
density.covariance_factor = lambda : .25
density._compute_covariance()
plt.plot(xs,density(xs))
plt.show()
I get
which is pretty close to what you are getting from R. What have I done? gaussian_kde uses a changa...
PHP code to remove everything but numbers
I'm trying to remove everything from a string but just numbers (0-9).
4 Answers
4
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Performant Entity Serialization: BSON vs MessagePack (vs JSON)
...:2} is stored in a file and you want to update the value of "a" from 1 to 2000.
With MessagePack, 1 uses only 1 byte but 2000 uses 3 bytes. So "b" must be moved backward by 2 bytes, while "b" is not modified.
With BSON, both 1 and 2000 use 5 bytes. Because of this verbosity, you don't have to move...
Selecting a row in DataGridView programmatically
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130
Not tested, but I think you can do the following:
dataGrid.Rows[index].Selected = true;
or yo...
How do I achieve the theoretical maximum of 4 FLOPs per cycle?
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+150
I've done this exact task before. But it was mainly to measure power consumption and CPU temperatures. The following code (which is fa...
What is the reason for having '//' in Python? [duplicate]
...erands was already a floating point number.
In Python 2.X:
>>> 10/3
3
>>> # to get a floating point number from integer division:
>>> 10.0/3
3.3333333333333335
>>> float(10)/3
3.3333333333333335
In Python 3:
>>> 10/3
3.3333333333333335
>>> 1...
How can I split a string into segments of n characters?
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edited Jun 30 '16 at 3:03
Ruslan López
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