how do i square a number in swift in swift

In Swift, you can use the exponentiation operator ** to raise a number to a power, which is equivalent to squaring a number by raising it to the power of 2. Here's an example:

main.swift
let num = 5
let result = num ** 2 // result equals 25
54 chars
3 lines

In this example, we declare a constant num that stores the value 5. We then use the exponentiation operator ** to raise num to the power of 2, which results in the value 25. The result is stored in a constant result.

Alternatively, you could use the pow() function from the Foundation module to achieve the same result. Here's an example:

main.swift
import Foundation

let num = 5
let result = pow(num, 2) // result equals 25
76 chars
5 lines

In this example, we import the Foundation module, which provides the pow() function for performing exponentiation. We declare a constant num that stores the value 5. We then use the pow() function to raise num to the power of 2, producing the value 25. The result is stored in a constant result.