Chang Hsu

Taiwanese maths teacher who uses alternative distribution channels

Born: 2 December 1986
Age: 39
Birth name: 張舜為

Chang Hsu, born 張舜為 on 2 December 1986, is a Taiwanese mathematics teacher, YouTuber and online streamer who teaches calculus and has been active since March 2020. He speaks Standard Taiwanese Mandarin and English. His YouTube channel, 數學老師張旭 (changhsumath), had about 106,000 subscribers in November 2025, up from 17,000 in July 2021.