Scicos Block
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Float modulo function block

Contents

• Float modulo function block
  • Palette
  • Description
  • Dialog box
  • Default properties
  • Interfacing function
  • Computational function
  • See also
  • Authors

Palette

• NonLinear - NonLinear palette

Description

This block is a non linear function modulo where the input and output are real values. According to the parameter 'Amplitude', the output can't overflow the minimun -(m+%eps) and the maximun m, where m is the value of 'Amplitude'/2.
This block computes

$$\begin{eqnarray} y=F\left(u\right)=u-\dfrac{1}{2}m-m {\rm floor}\left(\dfrac{u-\dfrac{1}{2}m}{m}\right)-\dfrac{1}{2}m, \end{eqnarray}$$

where 'm' is the value of 'Amplitude'/2, 'u' the input and 'y' the output.
The value of the output are negative, positive or zero.

Figure 1: Float modulo function

Dialog box

• Amplitude
  The maximal level of the nonlinear function.
  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
  
• 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: fmodulo

Interfacing function

• MODNUMCOS/macros/scicos_blocks/NonLinear/FMODULO_f.sci [view code]

Computational function

• MODNUMCOS/routines/nonlinear/fmodulo.c (Type 2) [view code]

See also

• IMODULO_f - Integer modulo function block (Scicos Block)
• IMODULOB_f - Integer modulob function block (Scicos Block)
• FMODULOB_f - Float modulob function block (Scicos Block)
• FMODULOC_f - Float moduloc function block (Scicos Block)
• LCMODULO_f - Left shift circulate integer modulo function block (Scicos Block)

Authors

IRCOM Group Alan Layec