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Scilab help >> Xcos > palettes > Matrix operation palette > MATCATH

# MATCATH

Horizontal Concatenation

### Description

The MATCATH Block outputs the horizontal concatenation of multiple matrices. It is also called concatenation according to the columns. The inputs U1,U2,...,Un must have the same number of rows. The user must set the number of input matrices in the Number of input parameter.

The output is a M-by-(N1+N2+...+Nn) matrix, where N1,N2,...,Nn are the numbers of columns of the inputs matrices, and M is the number of rows.

The equivalent of MATCATH in Scilab is y=[U1 U2 ... Un].

### Dialog box

• Number of input

It indicates the number of input matrices.

Properties : Type 'vec' of size 1.

### Example

```A=[1 2 3;4 5 6]
B=[7 8;9 10]
The result of the horizontal concatenation is:
C=[1 2 3 7 8;4 5 6 9 10]```

### Default properties

• always active: no

• direct-feedthrough: yes

• zero-crossing: no

• mode: no

• regular inputs:

- port 1 : size [-1,-2] / type 1

- port 2 : size [-1,-3] / type 1

• regular outputs:

- port 1 : size [1,1] / type 1

• number/sizes of activation inputs: 0

• number/sizes of activation outputs: 0

• continuous-time state: no

• discrete-time state: no

• object discrete-time state: no

• name of computational function: mat_cath

### Interfacing function

• SCI/modules/scicos_blocks/macros/MatrixOp/MATCATH.sci

### Computational function

• SCI/modules/scicos_blocks/src/c/mat_cath.c

• SCI/modules/scicos_blocks/src/c/matz_cath.c

### Authors

Fady NASSIF - INRIA

 << MATBKSL Matrix operation palette MATCATV >>

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