👉 Choice math, also known as decision theory or game theory, is a branch of mathematics that studies strategic decision-making in situations where outcomes depend on the choices of multiple agents, each with their own preferences and information. It provides a framework for analyzing scenarios where the optimal decision for one agent depends on the actions of others, leading to concepts like Nash equilibrium, where no player can benefit by changing their strategy while the others keep theirs unchanged. This field is crucial in economics, political science, and computer science for modeling interactions and predicting outcomes in competitive or cooperative environments.