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Scilab manual >> xcos > palettes > Matrix operation palette > MATCATV

# MATCATV

Vertical Concatenation

### Description

The MATCATV Block outputs the vertical concatenation of multiple matrices. It is also called concatenation according to the rows. The inputs U1,U2,...,Un must have the same number of columns. The output is a (M1+M2+...+Mn)-by-N matrix, where M1,M2,...,Mn are the numbers of rows of the inputs matrices, and N is the number of columns.

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

### Dialog box

• Datatype(1=real double 2=Complex)

It indicates the type of the output. It support only the two types double (1) and complex (2). If we input another entry in this label xcos will print the message "Datatype is not supported".

Properties : Type 'vec' of size 1.

• number of line of each matrix

It indicates the number of rows of the inputs matrices.

Properties : Type 'mat' of size [-1,1].

### Example

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

### Interfacing function

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

### Computational function

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

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