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Very large matrices using Python and NumPy
...L-like GROUP BY aggregation at 1,000,000 rows/second. Not bad for a Python-based solution!
Accessing the data as a NumPy recarray again is as simple as:
data = table[row_from:row_to]
The HDF library takes care of reading in the relevant chunks of data and converting to NumPy.
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Firebase Storage How to store and Retrieve images [closed]
How to store and view images on firebase?
6 Answers
6
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Encrypting & Decrypting a String in C# [duplicate]
...votes, I've updated it to fix silly bugs and to generally improve the code based upon comments and feedback. See the end of the post for a list of specific improvements.
As other people have said, Cryptography is not simple so it's best to avoid "rolling your own" encryption algorithm.
You can, h...
Get data from file input in JQuery
I actually have a file input and I would like to retrieve the Base64 data of the file.
7 Answers
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Different floating point result with optimization enabled - compiler bug?
...finite precision, or if you were working with a device that used a decimal-based rather than binary-based floating point representation. But, you aren't. Most computers use the binary IEEE floating point standard.
As Maxim Yegorushkin already noted in his answer, part of the problem is that intern...
Missing include “bits/c++config.h” when cross compiling 64 bit program on 32 bit in Ubuntu
...it version of Ubuntu 10.10 and trying to cross compile to a 64 bit target. Based on my research, I have installed the g++-multilib package.
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Swift Beta performance: sorting arrays
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static const uint64_t NANOS_PER_SEC = 1000ULL * NANOS_PER_MSEC;
mach_timebase_info_data_t timebase_info;
uint64_t abs_to_nanos(uint64_t abs) {
if ( timebase_info.denom == 0 ) {
(void)mach_timebase_info(&timebase_info);
}
return abs * timebase_info.numer / timebase_info.de...
App Inventor 2 拓展参考文档 · App Inventor 2 中文网
...图像】TaifunImage 拓展：图片压缩剪裁处理
【图像】SimpleBase64 拓展：图像Base64编解码传输
【图像】KIO4_Base64 拓展：更强大的图像Base64编解码工具，解码后的图像可写入到文件
【连接】MqttClient 拓展：轻量级物联网传输协议
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【持续更新】App Inventor 2 中文拓展一览 - App Inventor 2 中文网 - 清泛...
...图像】TaifunImage 拓展：图片压缩剪裁处理
【图像】SimpleBase64 拓展：图像Base64编解码传输
【图像】KIO4_Base64 拓展：更强大的图像Base64编解码工具，解码后的图像可写入到文件
【图像】ImageUtil 拓展：图像组件的附加工具，提供...
64-bit version of Boost for 64-bit windows
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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