Q:

Ruby program to calculate the power of a given number using recursion

belongs to collection: Ruby User-defined Functions Programs

YasminRadwan26
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2022-07-21
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In this program, we will read a number and power from the user and calculate the power of the number using recursive function and return the result.

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YasminRadwan26
2022-07-21
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Program/Source Code:

The source code to calculate the power of a given number using recursion is given below. The given program is compiled and executed successfully.

# Ruby program to calculate the 
# power of given number using recursion

def CalculatePower(num, power)
	result = 1;
	if power > 0 
		result = num * (CalculatePower(num, power-1));
	end
	return result;
end

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

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

result = CalculatePower(number, power);
print "result: ",result;

Output:

Enter number: 2
Enter power: 3
result: 8

Explanation:

In the above program, we read a number and power from the user and called the created recursive function CalculatePower() function and got the result. Then we printed the result.

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