PHP's acosh in TypeScript

How to use

Install via yarn add locutus and import: import { acosh } from 'locutus/php/math/acosh'.

Or with CommonJS: const { acosh } = require('locutus/php/math/acosh')

Use a bundler that supports tree-shaking so you only ship the functions you actually use. Vite, webpack, Rollup, and Parcel all handle this. For server-side use this is less of a concern.

Examples

These examples are extracted from test cases that automatically verify our functions against their native counterparts.

#	code	expected result
1	acosh(8723321.4)	16.674657798418625

Here's what our current TypeScript equivalent to PHP's acosh looks like.

TSTypeScript JSJavaScript TSStandalone TS JSStandalone JS

Copy code

export function acosh(arg: number): number {
  //      discuss at: https://locutus.io/php/acosh/
  // parity verified: PHP 8.3
  //     original by: Onno Marsman (https://twitter.com/onnomarsman)
  //       example 1: acosh(8723321.4)
  //       returns 1: 16.674657798418625

  return Math.log(arg + Math.sqrt(arg * arg - 1))
}

export function acosh(arg) {
  //      discuss at: https://locutus.io/php/acosh/
  // parity verified: PHP 8.3
  //     original by: Onno Marsman (https://twitter.com/onnomarsman)
  //       example 1: acosh(8723321.4)
  //       returns 1: 16.674657798418625

  return Math.log(arg + Math.sqrt(arg * arg - 1))
}

Improve this function

Locutus is a community effort following The McDonald's Theory: we ship first iterations, hoping others will improve them. If you see something that could be better, we'd love your contribution.

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