Search the dictionary A Chinese word or character, or English Draw a character Search 4 entries. wēijīfēn 微积分 calculus (branch of mathematics) wēijīfēn 微積分 calculus (branch of mathematics) wēijīfēnxué 微积分学 calculus (branch of mathematics) wēijīfēnxué 微積分學 calculus (branch of mathematics)