Tag: Maths
-
Why choose square, not absolute value for the Least Square Method and variance ?
[Maths Intro An interesting question that I meet on the Maths class... And Prof. Hart provided me very detailed and convincing explanation in the our email conversation about this problem after class... What a memorable and enlightening process of thinking behind that "simple" Maths question!!! -
A guide for preparing for the Putnam Maths Competition
[Maths Intro Are you planning to participate in the Putnam Maths Competition in the future? Come and check it out! -
Why mathematicians choose "A linear subspace must have the additive identity" as one of the condition of the linear subspace but not "A linear subspace must be nonempty" ?
[Maths Intro Actually they can do that, but why they don't? Because from the perspective of modern algebra... -
A simple physical approach to understand the Taylor series
[Maths Physics Intro Do you know that the displacement formula with acceleration in one dimension which you had learned in Physics class actually reveals the existence of Taylor series implicitly?