Mathematicians are familiar with this; common problems in algebra are more tractable when considered over the complex numbers than over the reals, even though complex arithmetic is more difficult.
数学家对此很熟悉；如果将代数中的常见问题考虑成复数而不是实数时，那么这些问题就更容易处理，尽管复数算法较难。
Their story, though not as spectacular to the eye, will surely turn out to be as subtle and as complex.
他们的故事虽然看起来不那么壮观，但肯定会变得同样微妙和复杂。
Once you move to complex applications, though, the requirements get tougher.
但是，对于复杂的应用程序，需求就变得严格起来。
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