Log^2 n time complexity

1. What is time complexity of log 2 n?
2. What does log 2 n mean?
3. Is time complexity log base 2?
4. Is log 2 n same as log log n?

What is time complexity of log 2 n?

The time complexity is O(log(n) * log (n)) (or you can write O(log^2(n)) ).

What does log 2 n mean?

In mathematics, the binary logarithm (log₂ n) is the power to which the number 2 must be raised to obtain the value n.

Is time complexity log base 2?

In Computer Science, it's often base 2. This is because many divide and conquer algorithms that exhibit this kind of complexity are dividing the problem in two at each step.

Is log 2 n same as log log n?

log(n2)=log(n×n)