---
name: "class.x"
section: "1"
platform: "linux"
package: "palp"
version: "2.21-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/class.x"
---

# class.x(1)

classify reflexive polytopes

## NAME

class.x, class-\<num\>d.x - classify reflexive polytopes

## SYNOPSIS

**class.x** *\<Options\>* *\<ascii-input-file\>* *\<ascii-output-file\>*

## DESCRIPTION

The class-\<num\>d.x variant programs, where \<num\> is one of 4, 5, 6 and 11 work in different dimensions ; class.x defaults to dimension 6.

### Options

- **-h**

  prints this information and gives a command-line menu to get more information than available in this manual

- **-f** or -

  use as filter; otherwise parameters denote I/O files

- **-m\***

  various types of minimality checks (\* ... lvra)

- **-p\*** NAME

  specification of a binary I/O file (\* ... ioas)

- **-d\*** NAME

  specification of a binary I/O database (DB) (\* ... ios)

- **-r**

  recover: file=po-file.aux, use same pi-file

- **-o\[#\]**

  original lattice \[omit up to # points\] only

- **-s\***

  subpolytopes on various sublattices (\* ... vphmbq)

- **-k**

  keep some of the vertices

- **-c, -C**

  check consistency of binary file or DB

- **-M\[M\]**

  print missing mirrors to ascii-output

- **-a\[2b\], -A**

  create binary file from ascii-input

- **-b\[2a\], -B**

  ascii-output from binary file or DB

- **-H\***

  applications related to Hodge number DBs (\* ...cstfe)

## SEE ALSO

A complete manual is available here : http://arxiv.org/abs/1205.4147