This mathematical problem is very complex.

这道数学题非常复杂。

He spent an hour solving this mathematical problem.

他花了一个小时解决这道数学题。

He elegantly solved the complex mathematical problem.

他优雅地解决了这个复杂的数学问题。

This course is an undergraduate seminar on mathematical problem solving.

这个课程是关于解数学题的大专生研讨会.

It took him twenty minutes to work the last mathematical problem.

他花了二十分钟的时间计算出最后一道数学题.

The orbit of one particular comets was a very difficult mathematical problem.

一个特殊彗星轨道是一个非常困难的数学问题。

You should treat decimals as the whole number to solve the mathematical problem.

解这道数学题时,你应该把小数算作整数.

“It’s a mathematical problem, and a fascinating one at that, ” says JPL’s Chodas.

“这是个数学问题，而且就这一点说很吸引人，”喷气推进实验室的卓达斯说。

Working on a mathematical problem and getting that aha moment when things fit together makes me very happy.

绞尽脑汁地求解难题，待到一切环环相扣， 难题被成功破解，那就是我最开心的顿悟时刻。