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Generate a random point within a circle (uniformly)
... @Tharwen Notice how in a circle there are more points at radius 0.9-1.0 than at radius 0.0-0.1. random()+random() generates radii more likely to be around 1.0 but lie in the range 0.0-2.0. When folded down they're more likely to be around 1.0 and always in the range 0.0-1.0. What's more, it's...
莱昂氏unix源代码分析 PDF - 文档下载 - 清泛网 - 专注C/C++及内核技术
... 221
2.14 专用设备寄存器 221
第3章 阅读“C”程序 222
3.1 某些选出的例子 222
3.2 例1 222
3.3 例2 223
3.4 例3 223
3.5 例4 225
3.6 例5 225
3.7 例6 227
3.8 例7 227
3.9 例8 228
3.10 例9 228
3.11 例10 229
3.12 例11 229
3.13 例1...
How to annotate MYSQL autoincrement field with JPA annotations
...bjects
Also, to give context, here is what we're using:
Java 7
Glassfish 3.1
PostgreSQL 9.1
PrimeFaces 3.2/JSF 2.1
Also, for laziness' sake, I built this in Netbeans with the wizards for generating Entities from DB, Controllers from Entities, and JSF from Entities, and the wizards (obviously) do ...
What 'additional configuration' is necessary to reference a .NET 2.0 mixed mode assembly in a .NET 4
...ly, you need to modify your App.Config file to include:
<?xml version="1.0"?><configuration> <startup useLegacyV2RuntimeActivationPolicy="true"> <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/> </startup></configuration>
The key is the us...
What is the recommended approach towards multi-tenant databases in MongoDB?
...013/10/how-to-setup-saas-cloud-multi-tenant.html
– KMån
Sep 25 '15 at 15:59
add a comment
...
detach all packages while working in R
...
nothing
It may be worth to add solution made available by Romain François. When loaded the package nothing, which is currently available on GitHub, will unload all of the loaded packages; as in the example that Romain provides:
loadedNamespaces()
[1] "base" "datasets" "grDevices" "grap...
What are invalid characters in XML
...
In XML 1.0 there are many illegal characters. In fact even using a character entity for most control characters will cause an error when parsing.
– Thayne
Nov 17 '15 at 16:21
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What's the Best Way to Shuffle an NSMutableArray?
...t(arc4random_uniform(UInt32(i + 1))))
}
}
}
In Swift 3.0 and 3.1:
extension Array {
/// Fisher-Yates shuffle
mutating func shuffle() {
for i in stride(from: count - 1, to: 0, by: -1) {
let j = Int(arc4random_uniform(UInt32(i + 1)))
(self[i], sel...
Install a Python package into a different directory using pip?
...em-provided versions.
A full example:
PYTHONUSERBASE=/opt/mysterypackage-1.0/python-deps pip install --user --upgrade numpy scipy
..to install the scipy and numpy package most recent versions into a directory which you can then include in your PYTHONPATH like so (using bash and for python 2.6 on...
How do I measure execution time of a command on the Windows command line?
...: command took 0:0:59.99 (59.99s total)
– Jean-François Larvoire
Dec 2 '14 at 16:04
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