find the volume of a cylinder in swift

To find the volume of a cylinder in Swift, you need to use the formula πr²h, where r is the radius of the cylinder and h is the height of the cylinder. You'll also need to import the Foundation framework to access the value of π in Swift. Here's the code:

main.swift
import Foundation

func cylinderVolume(radius: Double, height: Double) -> Double {
    let pi = Double.pi
    let volume = pi * pow(radius, 2) * height
    return volume
}
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In this code, we define a function cylinderVolume that takes two arguments: radius and height, both of which are of type Double. Inside the function, we first create a constant pi that holds the value of π using the Double.pi property from the Foundation framework. We then calculate the volume of the cylinder using the formula πr²h, where we use the pow function to raise the radius to the power of 2.

Finally, we return the calculated volume as a Double value. You can call this function by passing in values for the radius and height parameters, like so:

main.swift
let myVolume = cylinderVolume(radius: 2.0, height: 5.0) // returns 62.83185307179586
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In this example, calling cylinderVolume with radius of 2.0 and height of 5.0 will return the volume 62.83.