樊畿是与华罗庚、陈省身齐名的当代华裔大数学家。他不仅在学术领域创造了许多辉煌业绩,而且在美国从教数十年,以其严谨认真又具独特个性的教学风格,培养了许多数学精英,不愧为一代大师。但由于种种原因,多年来,国人,甚至国内数学界人士却对樊先生并不熟悉。本文作者袁传宽先生是留美学习期间樊先生的学生,曾任樊先生的助教,彼此保持来往接触逾25年。袁先生此文饱含对恩师敬仰感激之情,以生动流畅的笔触,记述了樊先生的工作以至一些有趣的言谈举止,不仅有助于我们了解樊先生在学术上的贡献,而且对于我们学习应该如何做学问和如何做人也大有裨益。 Fan Ji is a contemporary Chinese math mathematician with Hua Luogeng and Chen Sangju. He not only created many brilliant achievements in the academic field, but also taught many decades of mathematics in the United States, with its strict and serious and unique personality teaching style, cultivating a number of mathematical elite, worthy of a generation of masters. However, for various reasons, people in China, even from the domestic mathematics circles, have not been familiar with Mr. Fan for many years. The author, Mr. Yuan Chuankuan, is a student of Mr. Fan during his study in the United States. He used to be a teaching assistant to Mr. Fan and has been in contact with each other for more than 25 years. Mr. Yuan is full of gratitude to the teacher for his gratitude. With vivid and smooth brushwork, Mr. Fan’s work and even some interesting ways of speech not only help us to understand Mr. Fan’s academic contribution, but also help us to understand what we should learn How to learn and how to be helpful is also helpful.