Yulin Hu, a native of Qingpu, was a calendar mathematician in Qing Dynasty. He was selected as an apprentice in Beijing Planetarium because of his outstanding talent, and became a disciple of Haining Li, a famous mathematician in Qing Dynasty. Li Chong is an assistant professor of mathematics in Wentong Museum and the chief teacher of mathematics in Shi Jing University, and has trained many talents. Later, he was recommended as a doctor of punishments.
Not a calligrapher, right?