👉 Idle math refers to the mathematical concepts and derivations that are explored when a problem or algorithm is not actively being solved but still requires understanding or proof. It involves deriving formulas, simplifying expressions, or proving theorems that are not directly needed for the current task but are valuable for broader mathematical knowledge and problem-solving skills. This idle work often deepens one's grasp of fundamental principles, enhances intuition, and prepares the mind for tackling more complex problems in the future.