---
name: "pi"
section: "1"
platform: "linux"
package: "cln"
version: "1.3.7-3"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/pi"
---

# pi(1)

compute decimal Archimedes' constant Pi to arbitrary accuracy.

## NAME

pi - compute decimal Archimedes' constant Pi to arbitrary accuracy.

## SYNOPSIS

**pi** *\[digits\]*\

## DESCRIPTION

The **pi** command prints 100 decimal digits of Archimedes' constant pi or a number of digits specified by an integer parameter on the command line.

- **--help**

  Show summary of options.

- **--version**

  Show version of program and exit.

- **--bibliography**

  Output recommended readings and exit.

## SEE ALSO

The CLN library is documented fully by *cln*, available via the Info system.

## AUTHOR

CLN was written by Bruno Haible \<haible@gnu.org\> and is  maintained by Richard Kreckel \<kreckel@ginac.de\>.