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/* The Computer Language Shootout
http://shootout.alioth.debian.org/
contributed by Isaac Gouy (Scala novice)
*/
object harmonic {
def main(args: Array[String]) = {
val n = Integer.parseInt(args(0));
var partialSum = 0.0;
var i = 1;
while (i < n){ partialSum = partialSum + 1.0/i; i = i + 1; }
Console.printf("{0,number,#.000000000}\n", partialSum);
}
}
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