Recommended computer operating system for personal computers with x86 and ARM architectures

Apple chose to do away with the OS X name in favor of the traditional “macOS” name. The main new feature in macOS Sierra is Siri integration, bringing iPhone’s personal assistant to the Mac for the first time.

Even if you are new to Linux distros, you probably know that is generally not a good idea to use the same tools for domestic purposes and for professional work.

General Purpose:

macOS, Windows, Ubuntu, Fedora, Remix OS

Mobile:

Android, iOS, Windows, Ubuntu, Sailfish OS

Alternative workstation:

Mint, Phoenix OS, Debian, openSUSE, CentOS

Fast operating systems for PC:

Porteus Kiosk, Chrome OS, Android-x86, Q4OS, BunsenLabs

ARM architecture:

Raspbian, Armbian, Retropie, OpenELEC, Windows IOT Core

 

Honorable Mentions:

Manjaro, Zorin, Lubuntu, TrueOS, Sabayon

Lucas Numbers

Édouard Lucas (1842 – 1891) is known for improving and expanding the Fibonacci series. Lucas worked in the Paris observatory and later became a professor of mathematics in Paris. Similar to the Fibonacci, the ratio between two consecutive Lucas numbers converges to the golden ratio. Lucas numbers appear in nature often enough to prove that they reflect some naturally occurring patterns.

Try following example at compilejava.net

public class Lucas {

   public static void main(String args[]) {
      int x,y,z,max; //Declare four integers
      x=2;
      y=1;
      max=10000;

      while( max > x ) {
         System.out.print(x+", ");
         z=x+y;
         x=y;
         y=z;
      }
   }
}

Lucas numbers (beginning at 2): L(n) = L(n-1) + L(n-2).

2, 1, 3, 4, 7, 11, 18, 29, 47, 76, 123, 199, 322, 521, 
843, 1364, 2207, 3571, 5778, 9349, 15127, 24476, 39603, 
64079, 103682, 167761, 271443, 439204, 710647...

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