@algorithm.ts/sieve-totient

A typescript implementation of the Linear Sieve algorithm for primes numbers and Euler's totient function.

If you are curious about this algorithm, you can visit here for more details.

Install

• npm

  npm install --save @algorithm.ts/sieve-totient

• yarn

  yarn add @algorithm.ts/sieve-totient

• deno

  import sieveTotient from 'https://raw.githubusercontent.com/guanghechen/algorithm.ts/main/packages/sieve-totient/src/index.ts'

Usage

• Get all prime numbers and totient function values in the range $[2, N)$:

  import sieveTotient from '@algorithm.ts/sieve-totient'
  
  const [totients, primes] = sieveTotient(10)
  // => 
  //    totients: [0, 1, 1, 2, 2, 4, 2, 6, 4, 6]
  //    primes: [2, 3, 5, 7]

Related

• Euler's totient function | Wikipedia
• 数论基础之筛法 | 光和尘