陆家羲1935年生于上海。自幼家贫,东拼西凑念到初中,便不得不辍学做学徒,当工人。他自幼酷爱数学,干活之余就躲在一个僻静的角落自学数学书籍。有一次他在孙泽瀛教授写的《数学方法趣引》一书中看到一道数学题:“一位女教师每天都要带15名女生散步。她要求学生排成3人一行,一共 Lu Jiasheng was born in Shanghai in 1935. Since childhood, when he was poor and he went to a junior high school, he would have to drop out of school to become an apprentice and become a worker. He loves mathematics since childhood, and he hides himself in a secluded corner and learns math books. One time he saw a math problem in a book entitled “Methods of Mathematical Methods” written by Prof. Sun Zeyi. “A female teacher takes 15 girls every day for a walk. She asks students to form a group of 3 students.