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Draw a perfect circle from user's touch
...ic 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_process
Given th...
Clojure: cons (seq) vs. conj (list)
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One difference is that conj accepts any number of arguments to insert into a collection, while cons takes just one:
(conj '(1 2 3) 4 5 6)
; => (6 5 4 1 2 3)
(cons 4 5 6 '(1 2 3))
; => IllegalArgumentException due to w...
PHP: How to generate a random, unique, alphanumeric string for use in a secret link?
...achieve the "unique" id, the greater the probability of occurring at least one collision (see en.wikipedia.org/wiki/Birthday_problem). The probability may be tiny for most of solutions but it still exists.
– Dariusz Walczak
Jul 14 '11 at 12:30
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prototype based vs. class based inheritance
...There are about a hundred terminology issues here, mostly built around someone (not you) trying to make their idea sound like The Best.
All object oriented languages need to be able to deal with several concepts:
encapsulation of data along with associated operations on the data, variously known ...
How to display multiple notifications in android
I am receiving only one notification and if there comes another notification, it replaces the previous one and here is my code
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Nginx Different Domains on Same IP
...rver blocks, whenever I try to access second domain, it redirects to first one.
1 Answer
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How can we match a^n b^n with Java regex?
One of the archetypal non- regular languages is:
3 Answers
3
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Verifying a specific parameter with Moq
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One large benefit to this approach is that it will give you specific test failures for how the object incorrect (as you're testing each individually).
– Rob Church
Apr 22 '13 at 8:13
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Command line to remove an environment variable from the OS level configuration
...ontrol\Session Manager\Environment" /F /V JUNK, and confirm that value is gone from registry. I open new cmd and type echo %JUNK% and still get Hello. Search of registry show no presence of 'JUNK'. Please don't tell me you need a reboot!
– caasjj
Apr 5 '16 a...
What is the difference between Scala's case class and class?
... Google to find the differences between a case class and a class . Everyone mentions that when you want to do pattern matching on the class, use case class. Otherwise use classes and also mentioning some extra perks like equals and hash code overriding. But are these the only reasons why one shou...