数学系的英文怎么说

数学系的英文：
department of mathematics

A government department or a subdivision of a department.
局司处等行政单位政府部门或其下属机构

He's the departed department leader.
他是过去的部门领导。

The bulk of the work rolls from department to department.
大量的工作从一个部门转移到另一个部门。

The accounting department is independent of all the other departments.
会计部门是独立于其它所有部门的。

depart out of this world
逝世|去世

mathematical manipulation
数学变换

He is a mathematics major.
他是主修数学的学生。

Mathematics is my special area.
数学是我的专业。

He is an expert in mathematical region.
他是数学界的专家。

She has a good head for mathematics.
她有数学天资。