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))