大约有 516 项符合查询结果（耗时：0.0162秒） [XML]
Read an Excel file directly from a R script
... 20
# readxl 341.0006 344.8904 347.0779 346.4518 348.9273 360.1808 20
# gdata 43860.4013 44375.6340 44848.7797 44991.2208 45251.4441 45652.0826 20
Here's the relative data:
# expr min lq mean median uq max
# 1 xlsx 13.06 13.16 13.65 13.75 ...
What's the difference between the atomic and nonatomic attributes?
...
360
This is explained in Apple's documentation, but below are some examples of what is actually ha...
What is a Portable Class Library?
...rogrammers create projects that will run over multiple platforms like Xbox 360, Windows Phone, Silverlight and .NET Framework (4 and above). this is done through omitting some specific API's that is not supported by your chosen target platforms that will cause you to lose some available features of ...
How do I profile memory usage in Python?
...t;> asizeof.asizeof({})
280
>>> asizeof.asizeof({'foo':'bar'})
360
>>> asizeof.asizeof('foo')
40
>>> asizeof.asizeof(Bar())
352
>>> asizeof.asizeof(Bar().__dict__)
280
>>> help(asizeof.asizeof)
Help on function asizeof in module pympler.asizeof:
as...
TCP 的那些事儿（下） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ZeroWindowProbeAck的包。
Silly Window Syndrome
Silly Window Syndrome翻译成中文就是“糊涂窗口综合症”。正如你上面看到的一样，如果我们的接收方太忙了，来不及取走Receive Windows里的数据，那么，就会导致发送方越来越小。到最后，如...
What are the applications of binary trees?
...y size is 10, the number of keys in a 512-byte node is 36. That's 36 keys (360 bytes) and 37 pointers (148 bytes) for a total of 508 bytes with 4 bytes wasted per node.
The use of multi-way keys introduces the complexity of a two-phase search (multi-way search to find the correct node combined with...
Which is faster: Stack allocation or Heap allocation
...An interesting thing I learned about Stack vs. Heap Allocation on the Xbox 360 Xenon processor, which may also apply to other multicore systems, is that allocating on the Heap causes a Critical Section to be entered to halt all other cores so that the alloc doesn't conflict. Thus, in a tight loop, ...
How do Trigonometric functions work?
...ndard interval. For starters, you could reduce angles to be between 0 and 360 degrees. But by using a few identities, you realize you could get by with less. If you calculate sines and cosines for angles between 0 and 45 degrees, you can bootstrap your way to calculating all trig functions for all...
Comparison of Android networking libraries: OkHTTP, Retrofit, and Volley [closed]
...
360
Looking at the Volley perspective here are some advantages for your requirement:
Volley, on o...
Evenly distributing n points on a sphere
...t ll.py
from math import asin
nx = 4; ny = 5
for x in range(nx):
lon = 360 * ((x+0.5) / nx)
for y in range(ny):
midpt = (y+0.5) / ny
lat = 180 * asin(2*((y+0.5)/ny-0.5...