Swift program to find the decadic logarithm(base 10) of a given number

Program/Source Code:

The source code to find the decadic logarithm of a given number is given below. The given program is compiled and executed successfully.

// Swift program to find the decadic logarithm (base 10) 
// of a given number

import Swift
import Foundation

var num:Double =  5.0
var res:Double =  0.0

res = log10(num)

print("Result: ",res)

Output:

Result:  0.6989700043360189

...Program finished with exit code 0
Press ENTER to exit console.

Explanation:

In the above program, we imported a package Swift to use the print() function using the below statement,

import Swift;

To use mathematics and some standard functions, we need to import the foundation package using the below statement,

import Foundation;

Here, we created two double type variables num, res that are initialized with 5.0,0.0 respectively. Then we found the decadic logarithm using the log10() function of a given number and printed the result on the console screen.