CLR

Block Screenshot

Contents

• Description
• Parameters
• Default properties
• Interfacing function
• Computational function

Description

This block realizes a SISO linear system represented by its rational transfer function Numerator/Denominator. The rational function must be proper (denominator degree must be less or equal to numerator degree).

Parameters

• Numerator

  This parameter sets the numerator of the transfer function.

  This must be a polynomial in s.

  Properties : Type 'pol' of size 1.

  In the provided expression, any subexpression being an exponent given either by a variable (of the context) whose name is more than 1-character long, or by an expression (not a literal integer) must end with a space to be correctly displayed on the block's icon. This constrain has no consequence on the computational validity of the expression. Examples: "s^12+1", "s^ +12+1", "s^+ 12+1" are all displayed as "s^{12}+1", while "1+s^ab+s^2" will be displayed as "1+s^{ab+s^2}" (but will be well computed as 1 + s^ab + s^2). To make it well displayed, "1+s^ab +s^2" will have to be entered (for instance).

• Denominator

  This parameter sets the denominator of the transfer function.

  This must be a polynomial in s.

  Properties : Type 'pol' of size 1.

  Take care about multichar exponents (see Numerator).

Default properties

• always active: yes

• direct-feedthrough: no

• 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: yes

• discrete-time state: no

• object discrete-time state: no

• name of computational function: csslti4

Interfacing function

• SCI/modules/scicos_blocks/macros/Linear/CLR.sci

Computational function

• SCI/modules/scicos_blocks/src/c/csslti4.c (Type 4)