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Ruby program to calculate the square root of the given number

Last Updated : December 15, 2025

Problem Solution

In this program, we will read a floating-point number from the user using gets.chomp.to_f. Then we will calculate the square root of the number using the Math.sqrt() function.

Program/Source Code

The source code to calculate the square root of the given number is given below. The given program is compiled and executed successfully.

# Ruby program to calculate the 
# square root of the given number

print "Enter Number: ";
num = gets.chomp.to_f;  

SquareRoot = Math.sqrt(num);

print "Square Root is: ",SquareRoot;

Output

Enter Number: 81
Square Root is: 9.0

Explanation

In the above program, we read a floating-point number from the user using gets.chomp.to_f and calculated the square root of the input number using Math.sqrt() function printed the result.

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