Hua-lun Li

Associate Professor

Department of Industrial Design, Chung Hua University, Taiwan

Hsin Chu, Taiwan

hualun@chu.edu.tw

https://www.youtube.com/user/hualunli

I create math animations without words (as few words as possible). My dream is to bring "Proofs Without Words" to life.

Taylor Polynomials Tango

0:01:08

Animation: Hua-lun Li, Music: Nando Monica

2012

https://www.youtube.com/watch?v=msFbHyw043g&list=UUX3MJHQ1OG94wdnaIoS5Gng

This animation is about Taylor polynomials on y=1-sqrt(1.1+sin(x)). The coefficient's sign of the highest term changed between positive and negative as the base point moving on x-axis. I think it is unique because (1) Everybody laughed when I show this in my calculus class (2) There are questions can be discussed with students as I pause the animation at different time.