# Documentation

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# PS Abs

Output absolute value of input physical signal

## Library

Physical Signals/Nonlinear Operators

## Description

The PS Abs block returns the absolute value of the input physical signal:

`$y=|u|$`

where

 `u` Physical signal at the input port `y` Physical signal at the output port

Both the input and the output are physical signals.

## Ports

The block has one physical signal input port and one physical signal output port.