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Calculate power of a number using recursion

Here given code implementation process.

// C program
// Calculate power of a number using recursion
#include <stdio.h>

// Calculate the power of a number 
double pow_number(int number, int power)
{
	if (power == 0)
	{
		return 1;
	}
	else if (power < 0)
	{
		//When get negative power
		return (1 / pow_number(number, -power));
	}
	else
	{
		return number * pow_number(number, power - 1);
	}
}
//
void find_power(int number, int power)
{
	//Display result
	printf("\n Given  : (%d^(%d)) ", number, power);
	printf("\n Result : %lf \n", pow_number(number, power));
}
int main()
{
	//Test Cases
	find_power(2, -2);
	find_power(2, 2);
	find_power(7, -5);
	find_power(4, 5);
	return 0;
}

Output

 Given  : (2^(-2))
 Result : 0.250000

 Given  : (2^(2))
 Result : 4.000000

 Given  : (7^(-5))
 Result : 0.000059

 Given  : (4^(5))
 Result : 1024.000000
// Java program
// Calculate power of a number using recursion
class PowerCalculation
{
	// Calculate the power of a number 
	public double pow_number(int number, int power)
	{
		if (power == 0)
		{
			return 1;
		}
		else if (power < 0)
		{
			//When get negative power
			return (1 / pow_number(number, -power));
		}
		else
		{
			return number * pow_number(number, power - 1);
		}
	}
	//
	public void find_power(int number, int power)
	{
		//Display result
		System.out.print("\n Given : (" + number + "^(" + power + ")) ");
		System.out.print("\n Result : " + pow_number(number, power) + " \n");
	}
	public static void main(String[] args)
	{
		PowerCalculation obj = new PowerCalculation();
		//Test Cases
		obj.find_power(2, -2);
		obj.find_power(2, 2);
		obj.find_power(7, -5);
		obj.find_power(4, 5);
	}
}

Output

 Given : (2^(-2))
 Result : 0.25

 Given : (2^(2))
 Result : 4.0

 Given : (7^(-5))
 Result : 5.9499018266198606E-5

 Given : (4^(5))
 Result : 1024.0
//Include header file
#include <iostream>
using namespace std;

// C++ program
// Calculate power of a number using recursion

class PowerCalculation
{
	public:
		// Calculate the power of a number 
		double pow_number(int number, int power)
		{
			if (power == 0)
			{
				return 1;
			}
			else if (power < 0)
			{
				//When get negative power
				return (1 / this->pow_number(number, -power));
			}
			else
			{
				return number * this->pow_number(number, power - 1);
			}
		}
	//
	void find_power(int number, int power)
	{
		//Display result
		cout << "\n Given : (" << number << "^(" << power << ")) ";
		cout << "\n Result : " << this->pow_number(number, power) << " \n";
	}
};
int main()
{
	PowerCalculation obj = PowerCalculation();
	//Test Cases
	obj.find_power(2, -2);
	obj.find_power(2, 2);
	obj.find_power(7, -5);
	obj.find_power(4, 5);
	return 0;
}

Output

 Given : (2^(-2))
 Result : 0.25

 Given : (2^(2))
 Result : 4

 Given : (7^(-5))
 Result : 5.9499e-05

 Given : (4^(5))
 Result : 1024
<?php
// Php program
// Calculate power of a number using recursion
class PowerCalculation
{
	// Calculate the power of a number 
	public	function pow_number($number, $power)
	{
		if ($power == 0)
		{
			return 1;
		}
		else if ($power < 0)
		{
			//When get negative power
			return (1 / $this->pow_number($number, -$power));
		}
		else
		{
			return $number * $this->pow_number($number, $power - 1);
		}
	}
	//
	public	function find_power($number, $power)
	{
		//Display result
		echo "\n Given : (". $number ."^(". $power .")) ";
		echo "\n Result : ". $this->pow_number($number, $power) ." \n";
	}
}

function main()
{
	$obj = new PowerCalculation();
	//Test Cases
	$obj->find_power(2, -2);
	$obj->find_power(2, 2);
	$obj->find_power(7, -5);
	$obj->find_power(4, 5);
}
main();

Output

 Given : (2^(-2))
 Result : 0.25

 Given : (2^(2))
 Result : 4

 Given : (7^(-5))
 Result : 5.9499018266199E-5

 Given : (4^(5))
 Result : 1024
//Include namespace system
using System;
// C# program
// Calculate power of a number using recursion
class PowerCalculation
{
	// Calculate the power of a number 
	public double pow_number(int number, int power)
	{
		if (power == 0)
		{
			return 1;
		}
		else if (power < 0)
		{
			//When get negative power
			return (1 / pow_number(number, -power));
		}
		else
		{
			return number * pow_number(number, power - 1);
		}
	}
	//
	public void find_power(int number, int power)
	{
		//Display result
		Console.Write("\n Given : (" + number + "^(" + power + ")) ");
		Console.Write("\n Result : " + pow_number(number, power) + " \n");
	}
	public static void Main(String[] args)
	{
		PowerCalculation obj = new PowerCalculation();
		//Test Cases
		obj.find_power(2, -2);
		obj.find_power(2, 2);
		obj.find_power(7, -5);
		obj.find_power(4, 5);
	}
}

Output

 Given : (2^(-2))
 Result : 0.25

 Given : (2^(2))
 Result : 4

 Given : (7^(-5))
 Result : 5.94990182661986E-05

 Given : (4^(5))
 Result : 1024
// Node Js program
// Calculate power of a number using recursion
class PowerCalculation
{
	// Calculate the power of a number 
	pow_number(number, power)
	{
		if (power == 0)
		{
			return 1;
		}
		else if (power < 0)
		{
			//When get negative power
			return (1 / this.pow_number(number, -power));
		}
		else
		{
			return number * this.pow_number(number, power - 1);
		}
	}
	//
	find_power(number, power)
	{
		//Display result
		process.stdout.write("\n Given : (" + number + "^(" + power + ")) ");
		process.stdout.write("\n Result : " + this.pow_number(number, power) + " \n");
	}
}

function main()
{
	var obj = new PowerCalculation();
	//Test Cases
	obj.find_power(2, -2);
	obj.find_power(2, 2);
	obj.find_power(7, -5);
	obj.find_power(4, 5);
}
main();

Output

 Given : (2^(-2))
 Result : 0.25

 Given : (2^(2))
 Result : 4

 Given : (7^(-5))
 Result : 0.000059499018266198606

 Given : (4^(5))
 Result : 1024
#  Python 3 program
#  Calculate power of a number using recursion
class PowerCalculation :
	#  Calculate the power of a number 
	def pow_number(self, number, power) :
		if (power == 0) :
			return 1
		
		elif(power < 0) :
			# When get negative power
			return ((1 / self.pow_number(number, -power)))
		else :
			return number * self.pow_number(number, power - 1)
		
	
	# 
	def find_power(self, number, power) :
		# Display result
		print("\n Given : (", number ,"^(", power ,")) ", end = "")
		print("\n Result : ", self.pow_number(number, power) ," \n", end = "")
	

def main() :
	obj = PowerCalculation()
	# Test Cases
	obj.find_power(2, -2)
	obj.find_power(2, 2)
	obj.find_power(7, -5)
	obj.find_power(4, 5)

if __name__ == "__main__": main()

Output

 Given : ( 2 ^( -2 ))
 Result :  0.25

 Given : ( 2 ^( 2 ))
 Result :  4

 Given : ( 7 ^( -5 ))
 Result :  5.9499018266198606e-05

 Given : ( 4 ^( 5 ))
 Result :  1024
#  Ruby program
#  Calculate power of a number using recursion
class PowerCalculation

	#  Calculate the power of a number 
	def pow_number(number, power)
	
		if (power == 0)
		
			return 1
		elsif(power < 0)
		
			# When get negative power
			return (1 / self.pow_number(number, -power).to_f)
		else
		
			return number * self.pow_number(number, power - 1)
		end
	end
	# 
	def find_power(number, power)
	
		# Display result
		print("\n Given : (", number ,"^(", power ,")) ")
		print("\n Result : ", self.pow_number(number, power) ," \n")
	end
end
def main()

	obj = PowerCalculation.new()
	# Test Cases
	obj.find_power(2, -2)
	obj.find_power(2, 2)
	obj.find_power(7, -5)
	obj.find_power(4, 5)
end
main()

Output

 Given : (2^(-2)) 
 Result : 0.25 

 Given : (2^(2)) 
 Result : 4 

 Given : (7^(-5)) 
 Result : 5.9499018266198606e-05 

 Given : (4^(5)) 
 Result : 1024 

// Scala program
// Calculate power of a number using recursion
class PowerCalculation
{
	// Calculate the power of a number 
	def pow_number(number: Int, power: Int): Double = {
		if (power == 0)
		{
			return 1;
		}
		else if (power < 0)
		{
			//When get negative power
			return (1 / pow_number(number, -power));
		}
		else
		{
			return number * pow_number(number, power - 1);
		}
	}
	//
	def find_power(number: Int, power: Int): Unit = {
		//Display result
		print("\n Given : (" + number + "^(" + power + ")) ");
		print("\n Result : " + pow_number(number, power) + " \n");
	}
}
object Main
{
	def main(args: Array[String]): Unit = {
		var obj: PowerCalculation = new PowerCalculation();
		//Test Cases
		obj.find_power(2, -2);
		obj.find_power(2, 2);
		obj.find_power(7, -5);
		obj.find_power(4, 5);
	}
}

Output

 Given : (2^(-2))
 Result : 0.25

 Given : (2^(2))
 Result : 4.0

 Given : (7^(-5))
 Result : 5.9499018266198606E-5

 Given : (4^(5))
 Result : 1024.0
// Swift program
// Calculate power of a number using recursion
class PowerCalculation
{
	// Calculate the power of a number 
	func pow_number(_ number: Int, _ power: Int) -> Double
	{
		if (power == 0)
		{
			return 1;
		}
		else if (power < 0)
		{
			//When get negative power
			return (Double(1) / self.pow_number(number, -power));
		}
		else
		{
			return Double(number) * self.pow_number(number, power - 1);
		}
	}
	//
	func find_power(_ number: Int, _ power: Int)
	{
		//Display result
		print("\n Given : (", number ,"^(", power ,")) ", terminator: "");
		print("\n Result : ", self.pow_number(number, power) ," \n", terminator: "");
	}
}
func main()
{
	let obj: PowerCalculation = PowerCalculation();
	//Test Cases
	obj.find_power(2, -2);
	obj.find_power(2, 2);
	obj.find_power(7, -5);
	obj.find_power(4, 5);
}
main();

Output

 Given : ( 2 ^( -2 ))
 Result :  0.25

 Given : ( 2 ^( 2 ))
 Result :  4.0

 Given : ( 7 ^( -5 ))
 Result :  5.94990182661986e-05

 Given : ( 4 ^( 5 ))
 Result :  1024.0
Last updated on by Kalkicode




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