He has worked out a mathematical problem.

他算出了一道数学题。

youdao

If solving a mathematical problem is "thinking", then computer can and does so much faster than a man.

如果解一道数学难题算“思考”的话，电脑也会，而且比人脑快很多。

youdao

The world is not the last word. You remember, it's not like a mathematical problem so there's no solution.

世界也不是最后的定论，你们记住，哲学问题不像数学问题，因此没有答案。

youdao

This is a mathematical problem, and eCourier spent some time hunting around for someone able to solve it.

ECONOMIST: A courier company goes online

As a non-mathematician, he appreciates the difficulty of explaining a recondite mathematical problem to a general audience, and gives a vivid account both of the passion that mathematicians have for their subject and of the fascination for this particular problem.

ECONOMIST: Mathematics

Mining involves solving a hard mathematical problem and miners typically use large numbers of computers to speed up the number-crunching involved.

BBC: Bitcoin miners generating high energy bills