👉 Dated math refers to mathematical concepts and methods that are no longer relevant or applicable in modern contexts, often stemming from historical developments or specific problems of the past. For instance, the use of the Pythagorean theorem in calculating distances in non-Euclidean geometries or the application of Euler's formula (e^(iθ) + 1 = 0) in complex analysis are examples where the original mathematical frameworks have evolved or been extended. Similarly, the concept of infinity in calculus, particularly in dealing with limits and infinite series, was initially met with skepticism and required rigorous formalization by mathematicians like Weierstrass. These dated concepts may seem outdated but often serve as foundational stepping stones, illustrating the progression and refinement of mathematical thinking over time.
