How is it used in other languages?

The exponentiation operator varies across programming languages. Here’s how height ** 2 translates in a few different languages:

JavaScript:

In JavaScript, you can use the Math.pow() function or the ** operator (ES6 and later):

let height = 5;
let area = height ** 2; // Using the exponentiation operator
// or
let area = Math.pow(height, 2); // Using Math.pow
console.log(area); // Output: 25

Java:

In Java, you use the Math.pow() method:

double height = 5;
double area = Math.pow(height, 2);
System.out.println(area); // Output: 25.0

C++:

In C++, you can use the pow() function from the <cmath> library:

#include <iostream>
#include <cmath>

int main() {
    double height = 5;
    double area = pow(height, 2);
    std::cout << area << std::endl; // Output: 25
    return 0;
}

Ruby:

In Ruby, you can use the ** operator:

height = 5
area = height ** 2
puts area # Output: 25

PHP:

In PHP, you can also use the ** operator:

$height = 5;
$area = $height ** 2;
echo $area; // Output: 25

If you need more examples or have a specific language in mind, feel free to ask!