Sign

This block implements the sign function applied to each entry of the input to produce the corresponding output. The possible output values are 1, 0 and -1.

    Sign

Library

Activate/MathOperations

Description

The Sign block indicates the sign of the input. The output is 1 when the input is greater than zero , 0 when the input is equal to zero and -1 when the input is less than zero.

Parameters

Sign_0

NameLabelDescriptionData TypeValid Values

nzz

Apply zero crossing

Enables the detection of zero crossings.

Scalar

0
1

externalActivation

External activation

Specifies whether the block receives an external activation or inherits its activation through its regular input ports. When External Activation is selected, an additional activation port is added to the block. By default, external activation is not selected.

Number

0
1

Ports

NameTypeDescriptionIO TypeNumber

Port 1

explicit

output

1

Port 2

explicit

input

1

Port 3

activation

input

externalActivation

Advanced Properties

NameValueDescription

always active

no

direct-feedthrough

yes

zero-crossing

yes

mode

yes

continuous-time state

no

discrete-time state

no