Programmer Guide/SPU Reference/RMS: Difference between revisions

Latest revision as of 08:25, 6 May 2011

Root mean square of input A.

In	Out	Description
`A_number`	`Y_number`	$Y=\|A\|$
`A_vector`	`Y_number`	$Y={\sqrt {{\frac {1}{n}}\sum _{i=0}^{n-1}A[i]^{2}}}$

with: n = length of A_vector

@@ Line 1: / Line 1: @@
 {{DISPLAYTITLE:{{SUBPAGENAME}}}}
-====RMS - rms measurement====
+Root mean square of input <var>A</var>.
+==<code>[SPU RMS <var>A</var> OUT <var>Y</var>]</code>==
-=====Usage:=====
+{|class="einrahmen"
+!In !!Out !!Description
-<code>RMS <var>A</var></code>
-=====Inputs:=====
-{|
 |-
-|A
+|<var>A<sub>number</sub></var>
-|number or vector
+|<var>Y<sub>number</sub></var>
-|}
+|<math>Y=|A|</math>
-=====Outputs:=====
-{|
 |-
-|<var>Y</var>
+|<var>A<sub>vector</sub></var>
-|root mean square (rms) of A (number)
+|<var>Y<sub>number</sub></var>
+|<math>Y=\sqrt{\frac{1}{n}\sum_{i=0}^{n-1}A[i]^2}</math>
 |}
+with: n = length of <var>A<sub>vector</sub></var>
-=====Function:=====
+;See also:
+<[[../#Signal Processing Atoms|SP-atoms]]>
-Compute root mean square of input <var>A</var>.
+<!-- AN, 2.5.2011 -->
-if <var>A</var> is a number:
-<var>Y</var> = |<var>A</var>|
-if <var>A</var> is a vector:
-<var>Y</var> = ((<var>A</var>[0] + ... + <var>A</var>[n-1]) / n)1/2
-n = number of elements of <var>A</var>