# Ruby program to calculate the base 2 logarithm of the given value

Ruby Example: Write a program to calculate the base 2 logarithm of the given value.
Submitted by Nidhi, on December 06, 2021

Problem Solution:

In this program, we will read an integer number from the user using gets.chomp.to_i. Then we will calculate the base 2 logarithm of a given number using the Math.log2() function.

Program/Source Code:

The source code to calculate the base 2 logarithm of the given number is given below. The given program is compiled and executed successfully.

```# Ruby program to calculate the
# base 2 logarithm of the given value

print "Enter value: ";
num = gets.chomp.to_i;

Log2 = Math.log2(num);

print "Base 2 logarithm is: ",Log2;
```

Output:

```Enter value: 213
Base 2 logarithm is: 7.734709620225838
```

Explanation:

In the above program, we read an integer number from the user using gets.chomp.to_i and calculated the base 2 logarithm of input number using Math.log2() function printed the result.