What is the equation for finding the middle value of an array?

The equation for finding the middle value of an array involves determining the average of the high and low indices that define the current range of the array being considered. Using the formula (high + low) / 2 effectively gives you the midpoint between these two indices.

This is particularly useful in algorithms such as binary search, where you need to divide the array into two halves to efficiently locate a specific element. By calculating the average of the high and low indices, you determine where the midpoint lies, allowing you to narrow down your search space.

While other options mention concepts of range or midpoint, they may not accurately reflect the correct method for finding the middle index specifically in the context of an array where the indices are defined as high and low. Hence, the formula (high + low) / 2 adequately captures the essence of finding the median or middle index for arrays and serves as a fundamental operation in algorithm design.