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I want my kids to be hackers 14 Aug 2013 | 06:31 pm
I have just stumbled upon a nice article on how kids don’t really understand how computers work. As the author writes in his conclusion, “I want the people who will help shape our society in the futu...
Mirror Mirror 12 Jul 2013 | 10:46 am
I watched Mirror Mirror yesterday together with Christina, Anya and Kyan and we all loved it. Mirror Mirror is basically a modern view on Snow White but where the frail princess is not frail at all a...
More prime number regular expression related news:
Format a french SIRET number labilbe.com 11 Mar 2011 | 11:00 am
For this sample code I used a Regular Expression. The same thing can be done, converting the number to a decimal type and using a ToString("### ### ### #####") call. I used an extension method so you ...
Java: Only allow numbers in textfield root-of-all-evil.com 20 Aug 2012 | 10:04 pm
This code-snippet will prevent a user entering something different then numbers into a JTextComponent (JEditorPane, JTextArea, JTextField). If you like, you can edit the regular expression, e.g. to al...
Is it divisible by 7? Death by regular expression wildaboutmath.com 7 Jun 2013 | 08:33 pm
Here is a fun question at Quora: How does one determine whether a number is evenly divisible by 7? There are some remarkably geeky answers. Those of you who write code might enjoy the second answer, b...
Orientably regular maps with Euler characteristic divisible by few primes jlms.oxfordjournals.org 31 Jul 2013 | 06:32 pm
Let G be a (2, m, n)-group and let x be the number of distinct primes dividing , the Euler characteristic of G. We prove first that, apart from a finite number of known exceptions, a non-abelian simpl...
