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Mon, 03 Mar 2008 21:02:00 GMT Paylocity saves money developing on Linux
Paylocity provides payroll and human resources outsourcing services for companies that don't want the burden of performing those functions in house. Launched in 1997, is is the brainchild of founder Steve Sarowitz, who was previously a salesperson for other payroll companies. "My accountant said I might want to stop making other people rich and do it myself," Sarowitz says. Paylocity was birthed strictly with a Microsoft infrastructure, but over the last six years, open source has made some inroads on the shop floor. |
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2008-03-27T02:44:00+00:00 Rubik's Cube Proof Cut to 25 Moves
KentuckyFC writes "A scrambled Rubik's cube can be solved in just 25 moves, regardless of the starting configuration. Tomas Rokicki, a Stanford-trained mathematician, has proven the new limit (down from 26 which was proved last year) using a neat piece of computer science. Rather than study individual moves, he's used the symmetry of the cube to study its transformations in sets. This allows him to separate the "cube space" into 2 billion sets each containing 20 billion elements. He then shows that a large number of these sets are essentially equivalent to other sets and so can be ignored. Even then, to crunch through the remaining sets, he needed a workstation with 8GB of memory and around 1500 hours of time on a Q6600 CPU running at 1.6GHz. Next up, 24 moves." Read more of this story at Slashdot.

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