matrixMultiply: Difference between revisions
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| Resulting matrix of matrix multiplication | | Resulting matrix of matrix multiplication.<br>First matrix must be of size N✕K, while the second must be of size K✕M.<br> If the shapes do not match, [] will be it returned.|Description= | ||
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|x1= <code>[[2],[2]] [[matrixMultiply]] [ [3] ]//Returns [[6],[6]]</code> |Example 1= | |x1= <code>[[2],[2]] [[matrixMultiply]] [ [3] ]//Returns [[6],[6]]</code> |Example 1= | ||
|x2= <code>[[-1,0,0], [0,-1,0], [0,0,-1]] [[matrixMultiply]] [[1,2,3], [3,1,2], [2,3,1]] //Returns [[-1,-2,-3], [-3,-1,-2], [-2,-3,-1]]</code> |Example 2= | |||
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<dl class="command_description"> | <dl class="command_description"> | ||
<!-- BEGIN Note Section --> | <!-- BEGIN Note Section --> | ||
<dd class="notedate">Posted on 30 Jun, 2019 | |||
<dd class="notedate">Posted on | <dt class="note">'''[[User:oOKexOo| oOKexOo]]'''<dd class="note"> | ||
<dt class="note">'''[[User: | Note that this command won't transform a row vector automatically into a column vector | ||
<dd class="note"> | <code> | ||
<code>[[ | [[-1,0,0],[0,-1,0],[0,0,-1]] [[matrixMultiply]] [1,2,3] // wrong, syntax error | ||
--> | [[-1,0,0],[0,-1,0],[0,0,-1]] [[matrixMultiply]] [[1,2,3]] // wrong, will return [] | ||
[[-1,0,0],[0,-1,0],[0,0,-1]] [[matrixMultiply]] [[1], [2], [3]] // correct, will return [[-1], [-2], [-3]] | |||
</code> | |||
<!-- END Note Section --> | <!-- END Note Section --> | ||
</dl> | </dl> | ||
Revision as of 03:53, 30 June 2019
Description
- Description:
- Resulting matrix of matrix multiplication.
First matrix must be of size N✕K, while the second must be of size K✕M.
If the shapes do not match, [] will be it returned. - Multiplayer:
- -
- Groups:
- Uncategorised
Syntax
- Syntax:
- matrix1 matrixMultiply matrix2
- Parameters:
- matrix1: Array
- matrix2: Array
- Return Value:
- Array
Examples
- Example 1:
[[2],[2]] matrixMultiply [ [3] ]//Returns [[6],[6]]- Example 2:
[[-1,0,0], [0,-1,0], [0,0,-1]] matrixMultiply [[1,2,3], [3,1,2], [2,3,1]] //Returns [[-1,-2,-3], [-3,-1,-2], [-2,-3,-1]]
Additional Information
- See also:
- See also needed
Notes
-
Report bugs on the Feedback Tracker and/or discuss them on the Arma Discord or on the Forums.
Only post proven facts here! Add Note
- Posted on 30 Jun, 2019
- oOKexOo
-
Note that this command won't transform a row vector automatically into a column vector
[[-1,0,0],[0,-1,0],[0,0,-1]] matrixMultiply [1,2,3] // wrong, syntax error [[-1,0,0],[0,-1,0],[0,0,-1]] matrixMultiply [[1,2,3]] // wrong, will return [] [[-1,0,0],[0,-1,0],[0,0,-1]] matrixMultiply [[1], [2], [3]] // correct, will return [[-1], [-2], [-3]]