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chinying/normalize.scala

Last active June 24, 2018 04:28
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normalize.scala
def normalize(a : Array[Double]) : Array[Double] = {
a.map(v => v/math.sqrt(a.map(x => x*x).reduce(_ + _)))
}
def net(t1: Array[Double], t2: Array[Double]) : Double = {
t1.zip(t2).map(x => x._1 * x._2).reduce(_ + _)
}
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