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Ruby on Rails Server options [closed]
...Passenger is currently the most popular Ruby app server, powering over 150,000 websites, including large ones such as New York Times, Pixar, Airbnb, etc.
Phusion Passenger vs other app servers
Phusion Passenger provides a lot more features and provides many advantages over other app servers, such ...
Algorithm to compare two images
...matches are known beforehand. If for example in your test data you have 1,000 images where 5% of them match, you now have a reasonably reliable benchmark. An algorithm that finds 10% positives is not as good as one that finds 4% of positives in our test data. However, one algorithm may find all t...
What is 'Context' on Android?
.... the Context, and the execStartActivity makes use of this context.
A 30,000 overview is this: the Instrumentation class keeps tracks of a list of Activities that it’s monitoring in order to do its work. This list is used to coordinate all of the activities and make sure everything runs smoothly...
Why does one use dependency injection?
...t actually be an improvement until your application has more than about 20,000 lines of code, and/or more than 20 dependencies on other libraries or frameworks. If your application is smaller than that, you may still prefer to program in a DI style, but the difference won't be nearly as dramatic.
...
Is there a unique Android device ID?
...
String deviceId = deviceUuid.toString();
might result in something like: 00000000-54b3-e7c7-0000-000046bffd97
It works well enough for me.
As Richard mentions below, don't forget that you need permission to read the TelephonyManager properties, so add this to your manifest:
<uses-permission and...
Is floating point math broken?
...tandard binary64 format, the representation can be written exactly as
0.1000000000000000055511151231257827021181583404541015625 in decimal, or
0x1.999999999999ap-4 in C99 hexfloat notation.
In contrast, the rational number 0.1, which is 1/10, can be written exactly as
0.1 in decimal, or
0x1.99...
LINGO使用指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...期初所支付的实际费用。
例4.4 贷款买房问题 贷款金额50000元，贷款年利率5.31%，采取分期付款方式（每年年末还固定金额，直至还清）。问拟贷款10年，每年需偿还多少元？
LINGO代码如下：
50000 = x * @fpa(.0531,10);
答案是x=6573.0...
Using Java with Nvidia GPUs (CUDA)
...e improvements on the GPU are currently small (but for vectors of size 100.000 you may get a factor > 10 performance improvements). This is due to the small kernel sizes. This will improve in a future version.
The GPU implementation use JCuda and JOCL and are available for Nvidia and ATI GPUs.
...
How to get started with developing Internet Explorer extensions?
...serApp = Marshal.GenerateGuidForType(typeof(IWebBrowserApp)); // new Guid("0002DF05-0000-0000-C000-000000000046");
var guidIWebBrowser2 = Marshal.GenerateGuidForType(typeof(IWebBrowser2)); // new Guid("D30C1661-CDAF-11D0-8A3E-00C04FC9E26E");
IntPtr intPtr;
...
Android: Want to set custom fonts for whole application not runtime
..._vertical"
android:text="text"
android:textColor="#000"
android:textSize="23sp"
custom:typeFace="metanormal"/>
and you can change the font progrmaticlly with setTypeFace method
also you can move the custom namespace to your parent layout if you wa...