It is somewhat abandoned.
2010-10-06 - euler, c#
Ok, this one is stupidly simple:
var squaredsum = Math.Pow(1.To(100).Sum(), 2); var sumedsquare = 1.To(100).Select(x => x * x).Sum(); Console.WriteLine(squaredsum - sumedsquare);
Adam Gordon Bell says stuff. Software building stuff mainly.