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Draw a perfect circle from user's touch
...
A classic Computer Vision technique for detecting a shape is the Hough Transform. One of the nice things about the Hough Transform is that it is very tolerant of partial data, imperfect data and noise. Using Hough for a circle:
http://en.wikipedia.org/wiki/Hough_transform#Circle_detection_proces...
Aren't promises just callbacks?
...s easily
Promises are chainable (monadic, if you want):
If you need to transform the value that a promise represents, you map a transform function over the promise and get back a new promise that represents the transformed result. You cannot synchronously get the value to use it somehow, but you...
What does 'predicate' mean in the context of computer science? [duplicate]
... value is unknown and is dependent on the value of x
Use quantifiers to transform predicate to proposition:
∃x∈Z (x+2=2x) "There exists a x in the set of integers such that x+2=2x"
share
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What is a lambda expression in C++11?
...problem
C++ includes useful generic functions like std::for_each and std::transform, which can be very handy. Unfortunately they can also be quite cumbersome to use, particularly if the functor you would like to apply is unique to the particular function.
#include <algorithm>
#include <ve...
What is the difference between JavaScript and ECMAScript?
...e in the browser today.
ES5 does not require a build step (transpilers) to transform it into something that will run in today's browsers.
ECMAScript version 5 was finished in December 2009,
the latest versions of all major browsers (Chrome, Safari, Firefox, and IE)
have implem...
simple HTTP server in Java using only Java SE API
...ava.io._
import javax.xml.ws._
import javax.xml.ws.http._
import javax.xml.transform._
import javax.xml.transform.stream._
@WebServiceProvider
@ServiceMode(value=Service.Mode.PAYLOAD)
class P extends Provider[Source] {
def invoke(source: Source) = new StreamSource( new StringReader("<p>Hel...
Functional design patterns [closed]
...w links to individual resources.
A quite common pattern is to build monad transformers instead of simple monads (see also the link in the next paragraph). It basically means you build something that must be combined with other monads, resulting in a more complex one able to handle features of both ...
How do I vertically align text in a div?
...
p {
text-align: center;
position: relative;
top: 50%;
-ms-transform: translateY(-50%);
-webkit-transform: translateY(-50%);
transform: translateY(-50%);
}
<ul>
<li>
<p>Some Text</p>
</li>
<li>
<p>A bit more text th...
How do I cast a JSON object to a typescript class
...ave found a library that does the job : https://github.com/pleerock/class-transformer.
It works like this :
let jsonObject = response.json() as Object;
let fooInstance = plainToClass(Models.Foo, jsonObject);
return fooInstance;
It supports nested childs but you have to decorate your class's me...
What is the difference between sed and awk? [closed]
...illiamson - What would be most useful to an ETL developer ? ETL or Extract Transform and Load is a data-warehousing term. Put crudely, the job involves EXTRACTION of data from different disparate sources (such as DB's, excel files, csv files etc), TRANSFORMATION of the same and then LOADING into a d...