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1·The inverse mapping is achieved through BP network, and neural network modul is constructed for designing process parameters.

通过误差逆传播(BP)网络实现了逆映射，建立了工艺参数设计的神经网络模块。

2·There is no explicit formulation of inverse mapping about the isoparametric element, so inverse mapping is avoided in finite element analysis.

由于等参元不存在逆变换的显式，所以在有限元分析的列式中都回避等参元逆变换。

3·Based on the new method, the paper discusses an inverse mapping of rational parameter surface, also, the implicit equation of the parametric equation is obtained.

用该方法对基于有理参数曲面的逆映射进行了一些探讨，并得到参数曲面的隐式方程。

4·Because the two inverse mappings of the mapping from a lattice to another lattice are defined, the Continuity of the lattice topology is comprehensively described.

对于格到格的映射，定义了两种逆映射，从而较全面地刻划了格拓扑的连续性。

5·Moreover, it avoids the huge requirement of inverse mapping by taking advantage of the template technique, which has improved the computation efficiency without artificial rendering error.

同时，充分利用模板技术避免了大量逆向映射的建立，在获得不错绘制效果的同时，进一步提高了计算效率。

6·Meanwhile a HCMAC neural network is fabricated to replace the complex calculation of the inverse Jacobian mapping.

同时，利用分层神经网络代替视觉空间到任务空间的映射，避免了复杂的逆矩阵计算。

7·The third step is to establish the mapping model by introducing the filter function which is the inverse function of the polish function;

引入作为磨光函数反函数的过滤函数实现映射性建模是第三步；

8·The displacement boundary values of the small model use the results of the large model, which are obtained by interpolating with numerical inverse isoparametric mapping.

二次细分网格位移边界值采用等参逆变换法由一次网格的计算结果插值得到。

9·Jacobian matrix and force-mapping matrix are calculated from the inverse-kinematics of the parallel-mechanism.

这种方法首先由机构的逆解计算其力映射矩阵、雅可比矩阵。

10·We improved arithmetics of Mercator mapping transform and inverse transform.

改进了墨卡托变换与逆变换算法。