Averages/Root mean square: Difference between revisions

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=={{header|Elena}}==
{{trans|C#}}
ELENA 3.4.x :
<lang elena>import extensions.;
import system'routines.;
import system'math.;
 
extension op
{
get RootMeanSquare()
rootMeanSquare
[{
^ (self .selectBy(:x)(x => x * x); .summarize(Real new Real()) / self length.Length) sqrt.sqrt()
]}
}
 
public program()
{
[
console .printLine(new Range new(1, 10); rootMeanSquare.RootMeanSquare)
]}</lang>
{{out}}
<pre>
Retrieved from "https://rosettacode.org/wiki/Averages/Root_mean_square"