let function    : [Double] = [7, 8, 10]
let constraint1 : [Double] = [2, 3, 2, 1000]
let constraint2 : [Double] = [1, 1, 2, 800]

if let solution = SimplexSolver.maximize(function: function, constraints: [constraint1, constraint2], maximumIterationsCount: 10) {
    let x1 = solution[0]  // 200
    let x2 = solution[1]  // 0
    let x3 = solution[2]  // 300
    let f  = solution[3]  // 4400
}

let function    : [Double] = [3, 9]
let constraint1 : [Double] = [2, 1, 8]
let constraint2 : [Double] = [1, 2, 8]

if let solution = SimplexSolver.minimize(function: function, constraints: [constraint1, constraint2], maximumIterationsCount: 10) {
    let x1 = solution[0]  // 8
    let x2 = solution[1]  // 0
    let f  = solution[2]  // 24
}