1. 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。
2. 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。
3. 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。
4. The singular position of similar platform 3upu reached by algebraical method is identical to the position of general 3upu analysized by vector method. 通过代数法得到的相似平台3upu并联机构奇异位置，与用矢量法对一般3upu并联机构所作的分析一致。
5. The second fundamental theorem of algebraical functions is fundamental and important but it is about constant Numbers and its applicative area has a limit. 代数体函数的第二基本定理是一个基本而重要的定理，但它是关于常数的，其适用范围有局限性。
