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My first beat - It's a trap
[Music I used Garageband to produce a beat :) -
Louis – Grand Beatbox Battle 2023 - World League Solo Wildcard
[Music This is my Grand Beatbox Battle 2023 - World League Solo Wildcard :) -
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... -
Intro to the Colemak keyboard layout
[Computer-Science Intro The QWERTY layout was designed in the 19th century. Colemak is a modern alternative to the QWERTY and Dvorak layouts, designed for efficient and ergonomic touch typing in English... -- www.colemak.com -
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? -
My experience of U.S. Visa interview in Guangzhou China
[Daily Chinese Because of the quarantine policy in Shanghai, the U.S. Consulate in Shanghai, China was closed during that time, and accordingly I choose my VISA appointment at U.S. Consulate in Guangzhou, China...