log base 2 in c++
#include <iostream>
#include <cmath>
int main() {
double num, result;
// Input: Get the number for which the logarithm base 2 is to be calculated
std::cout << "Enter a number: ";
std::cin >> num;
// Processing: Calculate the logarithm base 2 using the log2 function from the cmath library
result = log2(num);
// Output: Display the result
std::cout << "Log base 2 of " << num << " is: " << result << std::endl;
return 0;
}