TriDiagExtraction
This block extracts some elements from the input matrix u. When the quot;Extraction typequot; is set to quot;lowerquot;, it copies lower triangular elements to the output matrix of the same size. The elements below the main diagonal are set to zero. When the quot;Extraction typequot; is set to quot;upperquot;, it copies the upper triangular elements to the output matrix of the same size. The elements above the main diagonal are set to zero. When the quot;Extraction typequot; is set to quot;diagonalquot;, it copies the main diagonal elements to the output matrix of the same size. The elements above and below the main diagonal are set to zero.
Library
MatrixOperations
Description
The TriDiagExtraction blocks extracts some elements from the input matrix u. When the quot;Extraction typequot; is set to quot;lowerquot;, it copies lower triangular elements to the output matrix of the same size. The elements below the main diagonal are set to zero. When the quot;Extraction typequot; is set to quot;upperquot;, it copies the upper triangular elements to the output matrix of the same size. The elements above the main diagonal are set to zero. When the quot;Extraction typequot; is set to quot;diagonalquot;, it copies the main diagonal elements to the output matrix of the same size. The elements above and below the main diagonal are set to zero.
When the "Extraction type" is set to "lower", it copies lower triangular elements to the output matrix of the same size. The elements below the main diagonal are set to zero.
When the "Extraction type" is set to "upper", it copies the upper triangular elements to the output matrix of the same size. The elements above the main diagonal are set to zero.
When the "Extraction type" is set to "diagonal", it copies the main diagonal elements to the output matrix of the same size. The elements above and below the main diagonal are set to zero.
Parameters
| Name | Label | Description | Data Type | Valid Values |
|---|---|---|---|---|
decomptyp | Extraction type | Extraction type. Lower, Upper and Diagonal | String | 'Lower' |
externalActivation | External activation | Specifies whether the block receives an external activation or inherits its activation through its regular input ports. When External Activation is selected, an additional activation port is added to the block. By default, external activation is not selected. | Number | 0 |
Ports
| Name | Type | Description | IO Type | Number |
|---|---|---|---|---|
Port 1 | explicit | output | 1 | |
Port 2 | explicit | input | 1 | |
Port 3 | activation | input | externalActivation |
Advanced Properties
| Name | Value | Description |
|---|---|---|
always active | no | |
direct-feedthrough | yes | |
zero-crossing | no | |
mode | no | |
continuous-time state | no | |
discrete-time state | no |