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See the recommended documentation of this function

Справка Scilab >> Xcos > palettes > User defined functions palette > EXPRESSION

EXPRESSION

Mathematical expression

Block Screenshot

Description

The Expression block applies the specified Scilab expressions to its input.

Dialog box

  • number of inputs

    Block input can be a scalar or vector.

    Properties : Type 'vec' of size 1

  • scilab expression

    The Scilab expression applied to the input.

    Properties : Type 'vec' of size 1

  • use zero-crossing

    Select to enable zero crossing detection.

    Properties : Type 'vec' of size 1

Default properties

  • always active: no

  • direct-feedthrough: yes

  • zero-crossing: yes

  • mode: yes

  • regular inputs:

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

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

Example

The following example calculate an arbitrary expression with multiple different configuration or blocks.

Interfacing function

  • SCI/modules/scicos_blocks/macros/Misc/EXPRESSION.sci

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Last updated:
Thu Oct 02 14:01:17 CEST 2014