https://github.com/klaidliadon/next

A combinatorics package for Go
https://github.com/klaidliadon/next

combinatorics permutation repetition

Last synced: about 1 month ago
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A combinatorics package for Go

• Host: GitHub
• URL: https://github.com/klaidliadon/next
• Owner: klaidliadon
• License: mit
• Created: 2015-09-04T09:36:21.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2025-11-17T09:30:00.000Z (4 months ago)
• Last Synced: 2025-12-16T02:42:34.364Z (3 months ago)
• Topics: combinatorics, permutation, repetition
• Language: Go
• Size: 32.2 KB
• Stars: 15
• Watchers: 1
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# Next

[![GoDoc](https://godoc.org/klaidliadon.dev/next?status.svg)](https://godoc.org/klaidliadon.dev/next)

[![Build Status](https://travis-ci.org/klaidliadon/next.svg?branch=master)](https://travis-ci.org/klaidliadon/next) 

[![codecov.io](https://codecov.io/github/klaidliadon/next/coverage.svg?branch=master)](https://codecov.io/github/klaidliadon/next?branch=master)

The package calculates asynchronously combinations and permutations of a collection of values.

To add the package recommended:

```sh

go get klaidliadon.dev/next

```

## Functionalities

- Combinations

- Combinations with repetitions

- Permutations

- Permutations with repetitions

## Usage

Just use create a new channel using `Combination()` or `Permutation()` and receive the results.

```go

package main

import (

	"fmt"

	"klaidliadon.dev/next"

)

func main() {

	for v := range next.Combination([]int{1,2,3,4}, 2, true) {

		fmt.Println(v)

	}

}

```

Produces

```

[1 1]

[1 2]

[1 3]

[1 4]

[2 2]

[2 3]

[2 4]

[3 3]

[3 4]

[4 4]

```

## Roadmap

The 4 main cases of combinatronics are covered:

 

- [x] Combinations

- [x] Combinations with repetitions

- [x] Permutations

- [x] Permutations with repetitions

The future updates will improve performance and memory usage.