1.1.3 • Published 8 years ago
dichotomy v1.1.3
dichotomy(f, a, b) ⇒ number | Promise.<number>
dichotomy.js
Dichotomy algorithm:
given a function f : x -> f(x) and two numbers a, b
find y such that a < y < b and f(y) = 0
Kind: global function
Returns: number | Promise.<number> - y, such that f(y) == 0
| Param | Type | Default | Description |
|---|---|---|---|
| f | function | a function that takes a number and returns a number or a Promise | |
| a | Number | -Number.MAX_VALUE | Start of the search interval |
| b | Number | Number.MAX_VALUE | End of the search interval |
Example
dichotomy(x => x*x-2, 0, 10) == Math.sqrt(2)
dichotomy(x => Promise.resolve(x*x-2), 0, 10) == Promise.resolve(Math.sqrt(2))