import Euler

import Foundation
import Euler

// Constants

𝑒

// Logic

¬true

// Arithmetic

3 × 4

// Sets

let prime: Set<Int> = [2, 3, 5, 7, 11]
let fibonacci: Set<Int> = [1, 1, 2, 3, 5, 8, 13]
prime ∩ fibonacci

// Sequences

∑[1, 2, 3, 4, 5]

// Vectors

[1, 2] ⋅ [3, 4]

// Comparison

7 ≠ 9

// Calculus

let f: (Double) -> Double = sin
let fPrime = f′

f(π)
fPrime(π)

// Functions

let g: (Double) -> Double = cos

(f ∘ g)(π)

Add example code to playground
Add example code to playground
