---
name: "nauty-productg"
section: "1"
platform: "linux"
package: "nauty"
version: "2.8.9+ds-1+b1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/nauty-productg"
---

# nauty-productg(1)

product of two graphs (such as Cartesian product)

## NAME

nauty-productg - product of two graphs (such as Cartesian product)

## SYNOPSIS

**productg** \[*-u\|-c\|-l\|-L\|-k\|-t\|-a#*\] \[*infile* \[*outfile*\]\]

## DESCRIPTION

-

  Read two graphs in graph6/sparse6 format and write their product

-

  in sparse6 or dreadnaut format. **-d** : Dreadnaut format (default is sparse6)

**-c** : Cartesian product

**-l** : Lexicographic product (G1\[G2\])

**-L** : Lexicographic product (G2\[G1\])

**-t** : Tensor (Kronecker, categorical) product

**-k** : Complete (strong, normal) product

**-a**# : general case (argument is a 3-digit octal number)

-

  Add these values giving the condition for an edge:

- Code:

  400  200   100   040 020 010      004   002    001

- Graph1: same same

  same   adj adj adj    nonadj nonadj nonadj

- Graph2: same

  adj nonadj same adj nonadj  same   adj   nonadj

**-u** : Disjoint union

**-q** : Suppress informative output