英语语法分析

Thus, algebraical definitions of curved lines are theorems in the method of geometry.

这样，代数关于曲线的定义，在几何学方法里就成了定理。

The algebraical equations obtained from the difference equations are solved by the line relaxation iterative method.

差分方程形成的代数方程组用线松弛迭代求解。

In this paper, the polynimial time algorithms of the NP complete problems are gained in the algebraical and combinatorial two aspects respectively.

本文从代数及组合两个方面论证了NP完全问题存在多项式时间算法。