# Combinatorics

- Binomial Coefficient - Calculate the binomial coefficient or combinations of selecting k items from a set of n items. Understand the mathematical formula C(n, k) and its use in combinatorics.
- Combinations - Calculate the number of combinations (binomial coefficients) of choosing k items from n options without repetition using this combinations calculator.
- Factorial of a Number - Calculate the factorial of a non-negative integer with this factorial calculator. Essential for combinatorics and statistical calculations.
- Pascal's Triangle Coefficients - The coefficients in Pascal's triangle are calculated using the formula C(row, col) = row! / (col! * (row - col)!). This calculator helps find the coefficient at a specific position.