# Documentation

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Add two physical signal inputs

## Library

Physical Signals/Functions

## Description

The PS Add block outputs the sum of two input physical signals:

`$y={u}_{1}+{u}_{2}$`

where

 `u1` Physical signal at the first input port `u2` Physical signal at the second input port `y` Physical signal at the output port

## Ports

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