👉 Seating math is the process of calculating the number of ways to arrange people in a given seating configuration, often used in combinatorial problems. It involves applying principles of permutations and combinations to determine the total number of distinct seating arrangements possible, considering factors like fixed positions, rotations, and reflections. For example, if you have 300 seats and need to seat 10 people, the basic formula would be \( P(n, r) = \frac{n!}{(n-r)!} \), where \( n \) is the total number of seats and \( r \) is the number of people to be seated. However, if rotations are considered identical (like in a circular arrangement), you'd divide by \( n \) to account for rotations, resulting in \( \frac{P(n, r)}{n} \). This method extends to more complex scenarios with additional constraints or symmetries.