---
name: "abs"
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/abs/9"
---

# abs(9)

Compute the absolute value and sign of the input signal

## NAME

abs - Compute the absolute value and sign of the input signal

## SYNOPSIS

**loadrt abs \[count=*N*\|names=*name1*\[,*name2...*\]\]**

## FUNCTIONS

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

  ## PINS

- **abs.*N*.in float in**

  Analog input value

- **abs.*N*.out float out**

  Analog output value, always positive

- **abs.*N*.sign bit out**

  Sign of input, false for positive, true for negative

- **abs.*N*.is-positive bit out**

  TRUE if input is positive, FALSE if input is 0 or negative

- **abs.*N*.is-negative bit out**

  TRUE if input is negative, FALSE if input is 0 or positive

## AUTHOR

John Kasunich

## LICENSE

GPL