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How to install lxml on Ubuntu
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Stephen Fuhry
10.2k55 gold badges4646 silver badges5151 bronze badges
answered Jun 28 '11 at 10:11
AKXAKX
77.4k9...
np.mean() vs np.average() in Python NumPy?
... axes 0 and 1, I get wildly incorrect results unless I specify dtype='float64':
>T.shape
(4096, 4096, 720)
>T.dtype
dtype('<f4')
m1 = np.average(T, axis=(0,1)) # garbage
m2 = np.mean(T, axis=(0,1)) # the same garbage
m3 = np.mean(T, axis=(0,1), dtype='fl...
Which is faster : if (bool) or if(int)?
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Does this also apply to 64-bit processes, that __int64 is faster than int? Or CPU deals 32-bit integer with 32-bit instruction sets separately?
– Crend King
Apr 27 '11 at 21:22
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date(): It is not safe to rely on the system\'s timezone settings.解决...
...imezone.(2)
It is not safe to rely on the system解决方法,其实就是时区设置不正确造成的,本文提供了3种方法来解决这个问题。
实际上，从PHP 5.1.0开始当对使用date()等函数时，如果timezone设置不正确，在每一次调用时间函数时，都会产...
【活动取消】App Inventor 2 中文网学习合作计划，快速提升你的App Invento...
...己的学习。你在社区发布技术帖、分享开发视频，这不仅是分享经验，更是对你知识的梳理和总结。通过这种“输出倒逼输入”的方式，你会发现自己的技能提升速度惊人！
如您有任何疑问，可回复讨论，期待您的参与，成就...
你敢相信，鸿蒙debug安装包体积比release包要小？ - HarmonyOS NEXT - 清泛...
...量,在压缩方式。我用 unzip -v
看每个文件在包里是"压缩存"还是"原样存"。
● 完全确认了,谜底揭晓 —— 跟代码量、跟"变大"都没关系,是包内压缩方式不同:
┌─────────...
How many files can I put in a directory?
...67,295)
Maximum file size
Implementation: 244 - 26 bytes (16 TiB - 64 KiB)
Theoretical: 264 - 26 bytes (16 EiB - 64 KiB)
Maximum volume size
Implementation: 232 - 1 clusters (256 TiB - 64 KiB)
Theoretical: 264 - 1 clusters (1 YiB - 64 KiB)
ext2:
Maximum number of...
Do I need to convert .CER to .CRT for Apache SSL certificates? If so, how?
...in a file: One is a "binary" X.509 encoding, and the other is a "text" base64 encoding that usually starts with "-----BEGIN CERTIFICATE-----". These encode the same data but in different ways. Most systems accept both formats, but, if you need to, you can convert one to the other via openssl or othe...
What happens when there's insufficient memory to throw an OutOfMemoryError?
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64
Graham Borland seems to be right: at least my JVM apparently re-uses OutOfMemoryErrors. To tes...
undefined reference to `WinMain@16'
... oɔɯǝɹ
6,58066 gold badges5252 silver badges6464 bronze badges
answered Mar 10 '11 at 13:27
Cheers and hth. - AlfCheers and hth. - Alf
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