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Scilabヘルプ >> Xcos > palettes > Math operations palette > MATZREIM


Complex decomposition/composition

Block Screenshot


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.


  • Decomposition type (1=Complex2Real&Imag 2=Real&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

See also

  • MATMAGPHI — Complex from/to Magnitude and Angle Conversion
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Last updated:
Thu Feb 14 15:02:28 CET 2019