Programmer Guide/SPU Reference/SUM: Difference between revisions

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{{DISPLAYTITLE:{{SUBPAGENAME}}}}
{{DISPLAYTITLE:{{SUBPAGENAME}}}}
====SUM====
Difference of inputs <var>A</var> and <var>B</var>.
 
==<code>[SPU SUM <var>A</var> OUT <var>Y</var>]</code>==
=====Usage:=====
{|class="einrahmen"
 
!In !!Out !!Description
<code>SUM <var>A</var></code>
 
=====Inputs:=====
 
{|
|-
|-
|A
|<var>A<sub>number</sub></var>
|number or vector
|<var>Y<sub>number</sub></var>
|}
|<var>Y</var> = <var>A</var>
 
=====Outputs:=====
 
{|
|-
|<var>Y</var>
|sum of elements of A (number)
|}
 
=====Function:=====
 
Compute sum of elements of input A.
 
{|
|-
|If <var>A</var> is a number:
|Y = <var>A</var>
|-
|-
|if A is a vector:
|<var>A<sub>vector</sub></var>
|Y = <var>A</var>0 + ... + <var>A</var>n-1; n = number of elements of <var>A</var>
|<var>Y<sub>number</sub></var>
|<var>Y</var> = <math>\sum_{i=0}^{n-1}<var>A</var>[i]</math>
|}
|}
with: 0 &le; i &lt; length of <var>A<sub>vector</sub></var>
;See also:
<[[../#Signal Processing Atoms|SP-atoms]]>
<!-- AN, 2.5.2011 -->

Revision as of 09:08, 6 May 2011

Difference of inputs A and B.

[SPU SUM A OUT Y]

In Out Description
Anumber Ynumber Y = A
Avector Ynumber Y = {\displaystyle \sum _{i=0}^{n-1}<var>A</var>[i]}

with: 0 ≤ i < length of Avector

See also

<SP-atoms>

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