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

PRODUCT

Element-wise vector multiplication/division

Block Screenshot

Description

That bloc computes element-wise multiplication or division of its vector inputs. The number of inputs and operation are specified with the Number of inputs or sign vector parameter.

  • To multiply all the inputs between them, set this parameter to the number of inputs.

  • To multiply/divide the input ui, set in this parameter a vector k with k[i] = +1 (multiply) or -1 (divide) for the input ui.

Dialog box

  • Number of inputs or sign vector

    Enter the number of inputs.

    Properties : Type 'vec' of size 1

Default properties

  • always active: no

  • direct-feedthrough: yes

  • zero-crossing: no

  • mode: no

  • regular inputs:

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

Interfacing function

  • SCI/modules/scicos_blocks/macros/NonLinear/PRODUCT.sci

Computational function

  • SCI/modules/scicos_blocks/src/c/product.c (Type 4)

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Last updated:
Thu Oct 02 13:58:31 CEST 2014