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Floating point vs integer calculations on modern hardware
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@JohannesSchaub-litb: SSE2 (baseline for x86-64) has packed double-precision FP. With only two 64-bit doubles per register, the potential speedup is smaller than float for code that vectorizes well. Scalar float and double use XMM registers on x86-64, with legacy x87 ...
adito-gateway -华为云免费SSL VPN解决方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...误提示、
[root@adito mnt]# ls
adito-0.9.1-bin.zip jdk-7u17-linux-x64.tar.gz
[root@adito mnt]# tar -zxvf jdk-7u17-linux-x64.tar.gz
解压出来后，移动到usr目录
[root@adito mnt]# mv jdk1.7.0_17 /usr
配置java 参数
alternatives --install /usr/bin/java java /usr/jdk1.7.0_17/jr...
Resize image in the wiki of GitHub using Markdown
...s://cloud.githubusercontent.com/assets/1280390/12011119/596fdca4-acc2-11e5-84d0-4878164e04bb.png)
Cut-paste that by hand into your Mygist.md.
But: GitHub people may change this behavior tomorrow, without documenting it.
sh...
Inserting a PDF file in LaTeX
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84
For putting a whole pdf in your file and not just 1 page, use:
\usepackage{pdfpages}
\include...
How to compare only date components from DateTime in EF?
...Source: http://social.msdn.microsoft.com/Forums/en-US/csharpgeneral/thread/84d4e18b-7545-419b-9826-53ff1a0e2a62/
UPDATE
As of EF 6.0 and later EntityFunctions is replaced by DbFunctions.
share
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i...
Initializing a list to a known number of elements in Python [duplicate]
...r I'll stop and restart the program, so I always want (currently) 4 * 24 = 96 bins. It seems natural to me (with a C / C++ / C# / etc. background) to start by initializing each bin to 0. How is this an optimization, whether premature or not?
– Technophile
Dec...
Get cookie by name
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96
use a cookie getting script:
function readCookie(name) {
var nameEQ = name + "=";
var ...
How do I activate a virtualenv inside PyCharm's terminal?
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96
Edit:
According to https://www.jetbrains.com/pycharm/whatsnew/#v2016-3-venv-in-terminal, PyCha...
How should I print types like off_t and size_t?
...77: '_snprintf_s' : format string '%jd' requires an argument of type '__int64', but variadic argument 1 has type 'off_t'"... A truely portable way is printf("%lld\n", (long long)x);
– ericcurtin
Jun 13 '18 at 16:59
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Encrypt Password in Configuration Files? [closed]
...n;
import java.security.spec.InvalidKeySpecException;
import java.util.Base64;
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.PBEKeySpec;
import javax.crypto.spec.SecretKeySpec;
publ...