Discrete Calculus Part 3 (of 5): The Fundamental Theorem of Discrete Calculus

A look at The Fundamental Theorem of Discrete Calculus Part 3 (of 5) and the process of anti forward difference (like the antiderivative and the Fundamental Theorem of Integral Calculus). The famous counting formulas (sum of the first k integers and the sum of the first k squares) derived using FTDC.