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Scilab help >> Xcos > palettes > Math operations palette > MATZREIM

# MATZREIM

Complex decomposition/composition

### Description

This block decomposes a matrix of complex numbers by separating the real and imaginary parts or composes a matrix of complex numbers by joining the two parts with respect to the value of decomposition type parameter. The following table summarize the bloc behaviour :

 Decomposition type Inputs Outputs Operation 1 One (complex) Two (double) Decomposition: The real part and the imaginary part of the input are available respectively on the first and the second outputs. 2 Two (double) One (complex) Composition: The output is a matrix of complex numbers built with the real and imaginary parts coming respectively from the first and from the second inputs.

### Dialog box

• decomposition type (1=Complex2Real&amp;Imag 2=Real&amp;Imag2Complex)

Indicates the type to use for the decomposition. See the description part for more information.

Properties : Type 'vec' of size 1.

### Default properties

• always active: no

• direct-feedthrough: yes

• zero-crossing: no

• mode: no

• regular inputs:

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

• regular outputs:

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

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

### Interfacing function

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

### Computational function

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

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