👉 Lucency is a mathematical concept in linear programming, which refers to a certain type of optimality measure. The idea is that if a particular optimal solution is found for a given problem, then it represents the best possible solution under all constraints and objectives. In other words, a "lucency" is a measure of how well a given optimal solution represents the overall objective or constraint satisfaction in the context of linear programming problems. It's often used to compare different solutions or methods that aim to solve