Based on the analysis of the look-up table method and Newton iteration algorithm the paper improves the Newton iteration method for the square root calculation.
在分析了查表法以及牛顿迭代法的基础上，对开平方计算的牛顿迭代法进行了改进。
In respect of programming, the improved Newton iteration algorithm is associated with function designations, therefore input and transfer of nonlinear functions are solved.
在编程技术方面，将改进的牛顿迭代法与函数调用相结合，解决了非线性函数的输入与转移问题。
A fast intersection algorithm for ray and NURBS surface is presented. The algorithm bases on the Newton iteration solution for equation set.
提出了一种基于牛顿迭代法解方程组的射线和NURBS曲面求交算法。
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