Scicos Block
fr - eng

Signum

Contents

• Signum
  • Palette
  • Description
  • Dialog box
  • Default properties
  • Interfacing function
  • Computational function
  • Authors

Palette

• Non_linear - Non-Linear palette

Description

The Sign block indicates the sign of the input:

• The output is 1 when the input is greater than zero.
• The output is 0 when the input is equal to zero.
• The output is -1 when the input is less than zero.

Dialog box

• 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
  
• 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: signum

Interfacing function

• SCI/macros/scicos_blocks/NonLinear/SIGNUM.sci [view code]

Computational function

• SCI/routines/scicos/signum.c (Type 4) [view code]

Authors

Ramine Nikoukhah INRIA