Lagrange is a famous mathematician.

拉格朗日是著名的数学家。

This theorem was proposed by a famous mathematician.

这个定理是由一位著名的数学家提出的。

Euclid was a famous mathematician from ancient Greece.

欧几里得是古希腊著名的数学家。

Our school invited a famous mathematician to give a lecture.

我们学校邀请了一位著名的数学家来演讲。

After studying so hard to learn, later, became a famous mathematician.

也就是经过这样勤奋学习再学习，后来，成为了著名的数学家。 。

Hua a luogeng is due to the diligence, to become a famous mathematician.

华罗庚正是由于这种勤奋，才成为著名的数学家。 。

Da Yan Method is the theory of linear congruence given by Qin Jiushao, who was a famous mathematician in Song dynasty.

大衍术是宋代著名数学家秦九韶发明的一次同余式理论。