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How many double numbers are there between 0.0 and 1.0?
...on between powers of two is linear, you could say that said range is 0.1 / 64th of the span between the surrounding powers of two (64 and 128), so you'd expect about
(0.1 / 64) * 2**52
distinct doubles -- which comes to 7036874417766.4004... give or take one or two;-).
...
Why is there no xrange function in Python3?
... timeit instead of trying to do it manually with time.
First, Apple 2.7.2 64-bit:
In [37]: %timeit collections.deque((x for x in xrange(10000000) if x%4 == 0), maxlen=0)
1 loops, best of 3: 1.05 s per loop
Now, python.org 3.3.0 64-bit:
In [83]: %timeit collections.deque((x for x in range(100000...
尝试加载 Oracle 客户端库时引发 BadImageFormatException。如果在安装 32 ...
...atException。如果在安装 32 位 Oracle 客户端组件的情况下以 64 位模式运行，将出现此问题。尝试加载 Oracle 客户端库时引发 BadImageFormatException。如果在安装 32 位 Oracle 客户端组件的情况下以 64 位模式运行，将出...“尝试加载 Oracle ...
App Inventor 2 图片缩放并返回Base64文本 - App应用开发 - 清泛IT社区，为创新赋能！
图片缩放并Base64化 参考代码如下：（注：图片可拖动至编程区，自动还原代码块）
参考用法如下：
其中，用到的SimpleBase64拓展，点此查看。其中，用到的TaifunImage拓展，点此查看。
来源中文文档：https://www.fun123.cn/reference/ ......
Very large matrices using Python and NumPy
...e to use numpy.memmap to memory map a file on disk. With newer python and 64-bit machine, you should have the necessary address space, without loading everything into memory. The OS should handle only keep part of the file in memory.
...
Suppress Scientific Notation in Numpy When Creating Array From Nested List
... numbers:
print(a) #prints [0.000010 22.000000 1234567799999999979944197226496.000000]
We've force-suppressed the exponential notation, but it is not rounded or justified, so specify extra formatting options:
np.set_printoptions(suppress=True,
formatter={'float_kind':'{:0.2f}'.format}) #flo...
Error “gnu/stubs-32.h: No such file or directory” while compiling Nachos source code
... that package is that my laptop is 32 bit...I did however find libc-dev-amd64. My bad.
– Keith Layne
Sep 14 '11 at 7:28
...
Request format is unrecognized for URL unexpectedly ending in
...llowing command line to achieve this...
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis.exe -i
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C++ performance challenge: integer to std::string conversion
...6171819"
"20212223242526272829"
"30313233343536373839"
"40414243444546474849"
"50515253545556575859"
"60616263646566676869"
"70717273747576777879"
"80818283848586878889"
"90919293949596979899"
};
std::string& itostr(int n, std::string& s)
{
if(n==0)
{
s="0";...
How large should my recv buffer be when calling recv in the socket library
...perform fragmentation). For UDP you are always save if you use a buffer of 64 KB, since no IP packet (v4 or v6) can be above 64 KB in size (not even when fragmented) and this even includes the headers IIRC, so data will always be below 64 KB for sure.
– Mecki
D...