Power system unit commitment, a problem of nonlinear commitment optimization with typical large-scale hybrid integers, is difficult to get an optimal solution in theory.
电力系统机组组合问题是一个典型的大规模混合整数的非线性组合优化问题，很难得到理论上的最优解。
2
The logical basis for the theoryof the integers that euclid presented in books vii to ix of the "elements" was woefully deficient .
欧几里德在《原本》的第七到第九册中提出的整数理论的逻辑基础是十分令人遗憾地有缺陷的。
3
We can answer them, with rather surprising accuracy, but only by boring much deeper, leaving the integers above us for a while, and using the most powerful weapons of the modern theory of functions.