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How can I multiply and divide using only bit shifting and adding?
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To multiply in terms of adding and shifting you want to decompose one of the numbers by powers of two, like so:
21 * 5 = 10101_2 * 101_2 (Initial step)
= 10101_2 * (1 * 2^2 + 0 * 2^1 + 1 * 2^0)
= 10101_2 * 2^2 + 10101_2 * 2^0
= 10101_2 <<...
How to delete images from a private docker registry?
...Step 1: Listing catalogs
You can list your catalogs by calling this url:
http://YourPrivateRegistyIP:5000/v2/_catalog
Response will be in the following format:
{
"repositories": [
<name>,
...
]
}
Step 2: Listing tags for related catalog
You can list tags of your catalog by ...
Confused about Service vs Factory
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All angular services are singletons:
Docs (see Services as singletons): https://docs.angularjs.org/guide/services
Lastly, it is important to realize that all Angular services are application singletons. This means that there is only one instance of a given service per injector.
Basically t...
C# pattern to prevent an event handler hooked twice [duplicate]
... Contains is an extension method that lets you query a list. It comes with LINQ because it's a query aid. It's related to EventHandlers and invocation lists because those are things are lists that can be queried.
– Judah Gabriel Himango
Nov 11 '11 at...
What is the difference between & vs @ and = in angularJS
...s of short screencasts explaining each of these. Screencast on @ is here: https://egghead.io/lessons/angularjs-isolate-scope-attribute-binding
& allows the directive's isolate scope to pass values into the parent scope for evaluation in the expression defined in the attribute. Note that the di...
How to set or change the default Java (JDK) version on OS X?
...u’re using, and the configuration you have in place, so I can’t give a complete solution for that…
– markhellewell
Nov 14 '14 at 2:25
12
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Purpose of Django setting ‘SECRET_KEY’
...ET_KEY in django? I did a few google searches and checked out the docs ( https://docs.djangoproject.com/en/dev/ref/settings/#secret-key ), but I was looking for a more in-depth explanation of this, and why it is required.
...
Setting Curl's Timeout in PHP
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See documentation: http://www.php.net/manual/en/function.curl-setopt.php
CURLOPT_CONNECTTIMEOUT - The number of seconds to wait while trying to connect. Use 0 to wait indefinitely.
CURLOPT_TIMEOUT - The maximum number of seconds to allow cURL ...
How to parse the AndroidManifest.xml file inside an .apk package
...om the Android SDK, into a Python (or whatever) script?
Through the aapt (http://elinux.org/Android_aapt), indeed, you can retrieve information about the .apk package and about its AndroidManifest.xml file. In particular, you can extract the values of individual elements of an .apk package through ...
How do you 'redo' changes after 'undo' with Emacs?
...Short version: by undoing the undo. If you undo, and then do a non-editing command such as C-f, then the next undo will undo the undo, resulting in a redo.
Longer version:
You can think of undo as operating on a stack of operations. If you perform some command (even a navigation command such as C-...