SwiftyAlgebra

SwiftyAlgebra copied to clipboard

At a Glance

Provides set of tools for managing numbers in Swift.

How To Get Started

• Copy content of Source folder to your project.

or

• Use SwiftyAlgebra cocoapod

Requirements

• iOS 9 and later
• Xcode 9 and later
• Swift 4

Usage

Introduction to Numbers

Instead of using many separate primitive numeric types, SwiftyAlgebra uses a universal type named Number which is working with all primitive types like Double values under the hood. The Number class is highly compatible with primitive types and currently supports:

• Int
• Float
• Double

Initializing new number is pretty simple:

let integerNumber = Number(value: 10)

let someFloatValue: Float = 4.3
let floatNumber = Number(value: someFloatValue)

let doubleNumber = Number(value: 9.124)

Also, you can get primitive value back easily:

let number = Number(value: 9.124)
number.int // 9
number.float // 9.124
number.double // 9.124

Integer numbers

Check if number is integer:

let double1 = Number(value: 9.124)
double1.isInteger // false

let double2 = Number(value: 9.0)
double2.isInteger // true

Check if number is natural:

let int = Number(value: -20)
int1.isNatural // false

let double = Number(value: 20.0)
double.isNatural // true

Check if number is prime:

let int1 = Number(value: 10)
int1.isPrime // false

let int2 = Number(value: 3)
int2.isPrime // true

Natural divisors:

let int = Number(value: 16)
let divisors = int.naturalDivisors // [1, 2, 4, 8, 16]

Prime divisors:

let int = Number(value: 150)
let divisors = int.primeDivisors // [2, 3, 5]

Prime factorization:

let int = Number(value: 150)
let divisors = int.primeFactorization // [2, 3, 5, 5]

Operators

One Number can be easily added to another:

let ten = Number(value: 10)
let two = Number(value: 2)
let sum = ten + two
sum.int // 12

In purpose of better compatibility with primitive numeric types, SwiftyAlgebra provides set of operators that might be helpful when you need to use Number and primitive variable in the same expression:

let number = Number(value: 10) + 2
number.int // 12

Full list of supported operators:

License

SwiftyAlgebra is available under the MIT license. See the LICENSE file for more info.