find the base 2 logarithm of a number in swift

To find the base 2 logarithm of a number in swift, you can use the log2 function provided by the Swift standard library. The log2 function takes a floating-point number as its argument and returns its base 2 logarithm as a floating-point number.

Here's an example code snippet that demonstrates how to use log2 to find the base 2 logarithm of a number in swift:

main.swift
let x = 64.0 // the number whose base 2 logarithm we want to find
let log2x = log2(x) // use the log2 function to find the base 2 logarithm of x
print("log2(\(x)) = \(log2x)") // print the result
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The output of this code snippet would be:

main.swift
log2(64.0) = 6.0
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which indicates that the base 2 logarithm of 64 is 6.0.