Find the surface area of a torus

Here given code implementation process.

/*
  C Program 
  Find the surface area of a torus
*/
#include <stdio.h>

#include <math.h>

//Calculate surface area of a torus by given small and large radius
void torus_surface_area(double r, double R)
{
	// Formula of torus area
	// 4 × π² × R × r
	// here r is radius of small circle
	// R is radius of large circle
	//Display given inputs
	printf("\nGiven Radius of r: %lf Radius of R : %lf", r, R);
	//Calculate surface area of torus
	double area = 4 * (M_PI * M_PI) * R * r;
	//Display surface area
	printf("\nSurface area of torus : %lf\n", area);
}
int main()
{
	//Simple Case
	torus_surface_area(3, 9);
	torus_surface_area(5, 8);
	torus_surface_area(6.2, 8.3);
	return 0;
}

Output

Given Radius of r: 3.000000 Radius of R : 9.000000
Surface area of torus : 1065.917275

Given Radius of r: 5.000000 Radius of R : 8.000000
Surface area of torus : 1579.136704

Given Radius of r: 6.200000 Radius of R : 8.300000
Surface area of torus : 2031.559370
// Java Program
// Find the surface area of a torus
class Torus
{
	//Calculate surface area of a torus by given small and large radius
	public void surface_area(double r, double R)
	{
		System.out.print("\nGiven Radius of r: " + r + " Radius of R : " + R + " ");
		// Formula of torus area
		// 4 × π² × R × r
		// here r is radius of small circle
		// R is radius of large circle
		//Calculate surface area of torus
		double area = 4 * (Math.PI * Math.PI) * R * r;
		System.out.print("\nSurface area of torus : " + area + "\n");
	}
	public static void main(String[] args)
	{
		Torus torus = new Torus();
		//Simple Case
		torus.surface_area(3, 9);
		torus.surface_area(5, 8);
		torus.surface_area(6.2, 8.3);
	}
}

Output

Given Radius of r: 3.0 Radius of R : 9.0
Surface area of torus : 1065.9172753176508

Given Radius of r: 5.0 Radius of R : 8.0
Surface area of torus : 1579.1367041742974

Given Radius of r: 6.2 Radius of R : 8.3
Surface area of torus : 2031.5593699202338
// C++ Program
// Find the surface area of a torus
#include<iostream>
#include<math.h>

using namespace std;
class Torus
{
	public:
		//Calculate surface area of a torus by given small and large radius
		void surface_area(double r, double R)
		{
			cout << "\nGiven Radius of r: " << r << " Radius of R : " << R << " ";
			// Formula of torus area
			// 4 × π² × R × r
			// here r is radius of small circle
			// R is radius of large circle
			//Calculate surface area of torus
			double area = 4 * (M_PI * M_PI) * R * r;
			cout << "\nSurface area of torus : " << area << "\n";
		}
};
int main()
{
	Torus torus;
	//Simple Case
	torus.surface_area(3, 9);
	torus.surface_area(5, 8);
	torus.surface_area(6.2, 8.3);
	return 0;
}

Output

Given Radius of r: 3 Radius of R : 9
Surface area of torus : 1065.92

Given Radius of r: 5 Radius of R : 8
Surface area of torus : 1579.14

Given Radius of r: 6.2 Radius of R : 8.3
Surface area of torus : 2031.56
// C# Program
// Find the surface area of a torus
using System;
class Torus
{
	//Calculate surface area of a torus by given small and large radius
	public void surface_area(double r, double R)
	{
		Console.Write("\nGiven Radius of r: " + r + " Radius of R : " + R + " ");
		// Formula of torus area
		// 4 × π² × R × r
		// here r is radius of small circle
		// R is radius of large circle
		//Calculate surface area of torus
		double area = 4 * (Math.PI * Math.PI) * R * r;
		Console.Write("\nSurface area of torus : " + area + "\n");
	}
	public static void Main(String[] args)
	{
		Torus torus = new Torus();
		//Simple Case
		torus.surface_area(3, 9);
		torus.surface_area(5, 8);
		torus.surface_area(6.2, 8.3);
	}
}

Output

Given Radius of r: 3 Radius of R : 9
Surface area of torus : 1065.91727531765

Given Radius of r: 5 Radius of R : 8
Surface area of torus : 1579.1367041743

Given Radius of r: 6.2 Radius of R : 8.3
Surface area of torus : 2031.55936992023
<?php
// Php Program
// Find the surface area of a torus
class Torus
{
	//Calculate surface area of a torus by given small and large radius
	public	function surface_area($r, $R)
	{
		echo "\nGiven Radius of r: ". $r ." Radius of R : ". $R ." ";
		// Formula of torus area
		// 4 × π² × R × r
		// here r is radius of small circle
		// R is radius of large circle
		//Calculate surface area of torus
		$area = 4 * (M_PI * M_PI) * $R * $r;
		echo "\nSurface area of torus : ". $area ."\n";
	}
}

function main()
{
	$torus = new Torus();
	//Simple Case
	$torus->surface_area(3, 9);
	$torus->surface_area(5, 8);
	$torus->surface_area(6.2, 8.3);
}
main();

Output

Given Radius of r: 3 Radius of R : 9
Surface area of torus : 1065.9172753177

Given Radius of r: 5 Radius of R : 8
Surface area of torus : 1579.1367041743

Given Radius of r: 6.2 Radius of R : 8.3
Surface area of torus : 2031.5593699202
#  Python 3 Program
#  Find the surface area of a torus
import math
class Torus :
	# Calculate surface area of a torus by given small and large radius
	def surface_area(self, r, R) :
		print("\nGiven Radius of r: ", r ," Radius of R : ", R ," ", end = "")
		#  Formula of torus area
		#  4 × π² × R × r
		#  here r is radius of small circle
		#  R is radius of large circle
		# Calculate surface area of torus
		area = 4 * (math.pi * math.pi) * R * r
		print("\nSurface area of torus : ", area ,"\n", end = "")
	

def main() :
	torus = Torus()
	# Simple Case
	torus.surface_area(3, 9)
	torus.surface_area(5, 8)
	torus.surface_area(6.2, 8.3)

if __name__ == "__main__": main()

Output

Given Radius of r:  3  Radius of R :  9
Surface area of torus :  1065.9172753176508

Given Radius of r:  5  Radius of R :  8
Surface area of torus :  1579.1367041742974

Given Radius of r:  6.2  Radius of R :  8.3
Surface area of torus :  2031.5593699202338
#  Ruby Program
#  Find the surface area of a torus
class Torus

	# Calculate surface area of a torus by given small and large radius
	def surface_area(s_r, l_r)
	
		print("\nGiven Radius of small r: ", s_r ," Radius of large R : ", l_r ," ")
		#  Formula of torus area
		#  4 × π² × R × r
		#  here r is radius of small circle
		#  R is radius of large circle
		# Calculate surface area of torus
		area = 4 * (Math::PI * Math::PI) * l_r * s_r
		print("\nSurface area of torus : ", area ,"\n")
	end
end
def main()

	torus = Torus.new()
	# Simple Case
	torus.surface_area(3, 9)
	torus.surface_area(5, 8)
	torus.surface_area(6.2, 8.3)
end
main()

Output

Given Radius of small r: 3 Radius of large R : 9 
Surface area of torus : 1065.9172753176508

Given Radius of small r: 5 Radius of large R : 8 
Surface area of torus : 1579.1367041742974

Given Radius of small r: 6.2 Radius of large R : 8.3 
Surface area of torus : 2031.5593699202338
// Scala Program
// Find the surface area of a torus
class Torus
{
	//Calculate surface area of a torus by given small and large radius
	def surface_area(r: Double, R: Double): Unit = {
		print("\nGiven Radius of r: " + r + " Radius of R : " + R + " ");
		// Formula of torus area
		// 4 × π² × R × r
		// here r is radius of small circle
		// R is radius of large circle
		//Calculate surface area of torus
		var area: Double = 4 * (Math.PI * Math.PI) * R * r;
		print("\nSurface area of torus : " + area + "\n");
	}
}
object Main
{
	def main(args: Array[String]): Unit = {
		var torus: Torus = new Torus();
		//Simple Case
		torus.surface_area(3, 9);
		torus.surface_area(5, 8);
		torus.surface_area(6.2, 8.3);
	}
}

Output

Given Radius of r: 3.0 Radius of R : 9.0
Surface area of torus : 1065.9172753176508

Given Radius of r: 5.0 Radius of R : 8.0
Surface area of torus : 1579.1367041742974

Given Radius of r: 6.2 Radius of R : 8.3
Surface area of torus : 2031.5593699202338
import Foundation
// Swift Program
// Find the surface area of a torus
class Torus
{
	//Calculate surface area of a torus by given small and large radius
	func surface_area(_ r: Double, _ R: Double)
	{
		print("\nGiven Radius of r: ", r ," Radius of R : ", R ," ", terminator: "");
		// Formula of torus area
		// 4 × π² × R × r
		// here r is radius of small circle
		// R is radius of large circle
		//Calculate surface area of torus
		let area: Double = 4 * (Double.pi * Double.pi) * R * r;
		print("\nSurface area of torus : ", area ,"\n", terminator: "");
	}
}
func main()
{
	let torus: Torus? = Torus();
	//Simple Case
	torus!.surface_area(3, 9);
	torus!.surface_area(5, 8);
	torus!.surface_area(6.2, 8.3);
}
main();

Output

Given Radius of r:  3.0  Radius of R :  9.0
Surface area of torus :  1065.91727531765

Given Radius of r:  5.0  Radius of R :  8.0
Surface area of torus :  1579.1367041743

Given Radius of r:  6.2  Radius of R :  8.3
Surface area of torus :  2031.55936992023


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