白尚恕先生是北京师大的教授,生前从事中国数学史的研究.在听到他逝世的时候我正在美国留学,无法回去参加悼念,心里一直想把先生对我的关心和培养写出来,以表我的感谢之情.白尚恕先生是我高中时候的数学老师.原来在文革期间,由于对数学史不重视,白先生曾经被 Mr. Bai Shangyu, a professor at Beijing Normal University, was engaged in the study of the history of Chinese mathematics during his lifetime and was studying in the United States when I heard of his death and was unable to go back and attend his mourning. He always wanted to write down the care and training Mr. I am grateful to Mr. Bai Shangyu is a high school mathematics teacher when I was originally during the Cultural Revolution, due to the history of mathematics is not valued, Mr. Bai was