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Ruby program to find the power of a number without using library function

Ruby Example: Write a program to find the power of a number without using library function.
Submitted by Nidhi, on December 01, 2021

Problem Solution:

In this program, we will read an integer number and its power from the user. Then we will calculate the power of a given number without using the library function.

Program/Source Code:

The source code to find the power of a number without using the library function is given below. The given program is compiled and executed successfully.

# Ruby program to find the power of a number 
# without using library function

print "Enter number: ";
number = gets.chomp.to_i;  

print "Enter power: ";
power = gets.chomp.to_i;  

i=0;
answer=number;
increment=0;

if power == 0
    print "Exception: Divid By Zero";
else
  while i<power
     j=1;
     while j<number
        answer += increment;
        j=j+1;
     end
     increment = answer;
     i=i+1;
  end
  print "Result is: ",answer;
end

Output:

Enter number: 5
Enter power: 3
Result is: 125

Explanation:

In the above program, we read an integer number and its power from the user. Then we calculated the power of the given number without using any library function and printed the result.

Ruby Basic Programs »


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