Averages/Root mean square: Difference between revisions
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[https://mlochbaum.github.io/BQN/try.html#code=Uk1TIOKGkCDiiJorwrTiiJjDl8ucw7fiiaAKClJNUyAxK+KGlTEw Try It!]
Another solution is to take the arithmetic mean <code>+´÷≠</code> under the square (<code>ט</code>) function. Under (<code>⌾</code>) squares the arguments, then applies the mean, then inverts the square function.
<lang bqn>RMS ← (+´÷≠)⌾(ט)</lang>
=={{header|C}}==
<lang c>#include <stdio.h>
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