Usage

var SimulatedAnnealing = require('simulated_annealling').SimulatedAnnealing;

var GetAnswerOfXSquareEqualsSixteen = (function() {
// parameters
let options = {
coolingFactor: 0.09,
stabilizingFactor: 1.005,
freezingTemperature: 0.001,
initialTemperature: 15,
initialStabilizer: 30
}

// final solution
let x;
// current solution
let cur;

const getCost = (v) => {
return Math.abs(v * v - 16);
}

const generateNeighbor = () => {
// neighbour is within 0.5 distance
cur = x + (Math.random() - 0.5);
return getCost(cur);
}

const generateNewSolution = () => {
cur = Math.random() * 16; // guess a number between 0 to 16
x = cur;
return getCost(cur);
}

const acceptNeighbor = () => {
x = cur;
}

// pass parameters to SA object
let SA = SimulatedAnnealing(options, generateNewSolution, generateNeighbor, acceptNeighbor);

// we need to continue simulating if temperature is still high
while (SA.Do()) {
// console.log("Temperature: " + SA.GetCurrentTemperature());
// console.log("GetCurrentEnergy: " + SA.GetCurrentEnergy());
}

// final solution
console.log("Solution is: " + x);
})();