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Evenly distributing n points on a sphere
...um_pts); how did I come to that one? (Note 2.)
Well, I am using the square root here because I want these to have even-area spacing around the disk. That is the same as saying that in the limit of large N I want a little region R ∈ (r, r + dr), Θ ∈ (θ, θ + dθ) to contain a number of points p...
Auto-loading lib files in Rails 4
...problem:
in config/application.rb:
config.autoload_paths << Rails.root.join('lib')
and keep the right naming convention in lib.
in lib/foo.rb:
class Foo
end
in lib/foo/bar.rb:
class Foo::Bar
end
if you really wanna do some monkey patches in file like lib/extensions.rb, you may manua...
How to change Vagrant 'default' machine name?
... project is mapped to a VirtualBox VM via UUID, which is stored in PROJECT_ROOT/.vagrant/machines/default/virtualbox/id. This UUID is not visible in the VirtualBox GUI (virtualbox.org/ticket/6989), but you can use VBoxManage list vms on the command line.
– odigity
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Ball to Ball Collision - Detection and Handling
...re and work with it that way. There's no reason for that expensive square root operation.
Also, once you have found a collision you have to continue to evaluate collisions until no more remain. The problem is that the first one might cause others that have to be resolved before you get an accurat...
What's the purpose of META-INF?
...clude with your JAR should be placed in some other sub-directory or at the root of the JAR itself.
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Using Node.js only vs. using Node.js with Apache/Nginx
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Not having to worry about privileges/setuid for the Node.js process. Only root can bind to port 80 typically. If you let nginx/Apache worry about starting as root, binding to port 80, and then relinquishing its root privileges, it means your Node app doesn't have to worry about it.
Serving static f...
互联网医疗新格局：顶级医生入场 - 资讯 - 清泛网 - 专注C/C++及内核技术
...、最终解决“看病难”的问题？他们的这些尝试，最终会如何改造互联网医疗的产业格局、以及中国医疗的组织形态？网易科技将继续选取其中的代表性商业模式，推出系列报道。
相关阅读：
“体制内医生集团”获千万级融...
Lightweight SQL editor for Eclipse [closed]
...ditor. Search for 'toad' in eclipse market place. It has very good Oracle, MySQL and PostgreSQL support.
Take a look at Installation instructions and screenshots.
Alternatively, there is DBeaver (very good in my experience and support almost all DB's) which is built on eclipse platform and availab...
Disable developer mode extensions pop up in Chrome
...ve it.
Click Pack extension. A .crx and .pem file will be created near the root directory of the extension. Install the extension using the .crx file and keep the .pem file safe.
Copy the .crx installed extension ID to the whitelist and restart Chrome.
The popup should be gone.
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How to get record created today by rails activerecord?
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MySQL:
Model.all :condition => ["DATE(created_at) = ?", Date.today] # rails 2
Model.where("DATE(created_at) = ?", Date.today) # rails 3
PostgreSQL:
Model.all :condition => ["created_at::date = ?", Date.today] # rail...