Scicos Block
fr - eng

##
Sample and hold (Old block)

### Contents

- Sample and hold (Old block)
  - Description
  - Default properties
  - Interfacing function
  - Computational function

### Description

Each time an input event is received block copy its input on the output and hold it until input event. For periodic Sample and hold, event input must be generated by a Clock.

### 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: 1
- number/sizes of activation outputs: 0
- continuous-time state: no
- discrete-time state: no
- object discrete-time state: no
- name of computational function: samphold4

### Interfacing function

- SCI/macros/scicos_blocks/Linear/SAMPHOLD.sci [view code]

### Computational function

- SCI/routines/scicos/samphold4.c (Type 4) [view code]