Sqrt in C++

To calculate the square root of a number in C++, you can make use of the sqrt() function from the cmath library. Here's an example:

``c++ #include #include


using namespace std;
int main() {

  double number, result;
cout << "Enter a number: ";

  cin >> number;
result = sqrt(number);
cout << "The square root of " << number << " is " << result << endl;
return 0;

}



In this example, we first declare the variables number and result of type double. We then prompt the user to enter a number which we store in the number variable. We then calculate the square root of this number using the sqrt() function and store the result in the result variable. Finally, we output the result to the console using cout.
For example, if the user enters 16, the program will output:



The square root of 16 is 4

Note that the sqrt() function returns a double, so we need to make sure to declare our variables as doubles in order to store the result. Also note that we need to include the cmath library to use the sqrt()` function.

Sqrt in C++

See this concept in other languages