is-pentagonal

1.0.0 • Public • Published

is-pentagonal

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Fastest way to check if a number is pentagonal.

Install

npm install is-pentagonal
var isPentagonal = require('is-pentagonal');

Usage

console.log(isPentagonal(1)); // true
console.log(isPentagonal(5)); // true
console.log(isPentagonal(12)); // true
console.log(isPentagonal(22)); // true
console.log(isPentagonal(35)); // true
console.log(isPentagonal(51)); // true
console.log(isPentagonal(70)); // true
console.log(isPentagonal(92)); // true
console.log(isPentagonal(117)); // true
console.log(isPentagonal(145];)); // true
console.log(isPentagonal(36)); // false
console.log(isPentagonal(18)); // false
console.log(isPentagonal(25)); // false
console.log(isPentagonal(49)); // false

Tests

To run the test suite, first install the dependencies, then run npm test:

$ npm install
$ npm test

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Install

npm i is-pentagonal

Weekly Downloads

2

Version

1.0.0

License

ISC

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Collaborators

  • dsernst