---
name: "invert"
section: "9"
platform: "linux"
package: "linuxcnc-uspace"
version: "1:2.9.4-2+deb13u1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/invert"
---

# invert(9)

Compute the inverse of the input signal

## NAME

invert - Compute the inverse of the input signal

## SYNOPSIS

The output will be the mathematical inverse of the input, ie **out** = 1/**in**. The parameter **deadband** can be used to control how close to 0 the denominator can be before the output is clamped to 0.  **deadband** must be at least 1e-8, and must be positive.

## FUNCTIONS

- **invert.***N* (requires a floating-point thread)

  ## PINS

- **invert.*N*.in float in**

  Analog input value

- **invert.*N*.out float out**

  Analog output value

## PARAMETERS

- **invert.*N*.deadband float rw**

  The **out** will be zero if **in** is between -**deadband** and +**deadband**.

## SEE ALSO

 [invert(9)](/invert/9.md), [div2(9)](/div2/9.md)

## AUTHOR

Stephen Wille Padnos

## LICENSE

GPL