PRODUCT - Element-wise vector multiplication/division (original) (raw)

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

Element-wise vector multiplication/division

Block Screenshot

Contents

• Element-wise vector multiplication/division
• • Palette
  • Description
  • Dialog box
  • Default properties
  • Interfacing function
  • Computational function
  • See also
  • Authors

Palette

• Math operations palette

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)

Voir aussi

• GAINBLK_f- Gain (Xcos block)
• INVBLK - Invert (Xcos block)
• PROD_f - Element-wise product (Xcos block)

Authors

Ramine Nikoukhah - INRIA