swift
Parameters: radius: Double
Input the radius of a circle as a Double
Returns: Returns the circumference of a circle as Double
This Swift function computes the circumference of a circle, given its radius. It embodies the principle of constants and calculation in code.
Hello, fellow programmer! Welcome to our blog post. In the following steps, we will demonstrate how to write a Swift function for finding the circumference of a circle. Understanding this process can further develop your coding skills. Tune in for an insightful programming journey ahead. Enjoy as we unfold the magic of Swift, one line at a time.
In swift, we start by declaring a constant for the value of Pi. Pi is a mathematical constant which is approximately equal to 3.14159. We use this value to calculate the circumference of a circle.
let pi = 3.14159
The next step is to declare a function that takes the radius of a circle as an argument and returns the calculated circumference.
func findCircumference(radius: Double) -> Double {
In this step, inside the function, we multiply the radius by 2 and then multiply the result by Pi which we previously declared as a constant.
let circumference = 2 * pi * radius
The final step inside the function is to return the calculated circumference.
return circumference
}
The final and complete implementation of our function to calculate the circumference of a circle in Swift is shown below.
let pi = 3.14159
func findCircumference(radius: Double) -> Double {
let circumference = 2 * pi * radius
return circumference
}
Simply call this function with the radius of the circle as the argument and it will return the circumference of the circle.
Circumference of a circle is calculated as `2 * π * r` where `π ~= 3.14159` and `r` is the radius of the circle. This function solves it programmatically.
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