# Tag Info

Hint: If the array is called $a$ and $N = \text{len}(a)$, then the code expresses the formula $$\left(\prod_{i=0}^{N-1} a_i\right)^{1/N}$$ Or equivalently $$\sqrt[N]{\prod_{i=0}^{N-1} a_i}$$ Extended hint: The formula is known as the geometric mean of a series of values (i.e. the array). (Wikipedia)