Listing 2's implementation runs in o (n) time. I won't prove this, but the running time of Listing 1's naive, recursive implementation is exponential in n.
清单2中的实现所需的时间比清单1短许多，清单2的运行时间为O (n)，而清单1中的递归实现的运行时间是n的指数。
So if you have some region of space S and you call its boundary surface S and you let n be the normal vector that goes out of the region R.
如果存在一些区域空间,边界为曲面,定义n为指向区域R外的法向量。
This method converted the S-N curve of material into the S-N curve of the construction member so that it made the computation more closely to the practical service life of the construction member.
该方法将材料的S - N曲线转化为零构件的S - N曲线，使之计算结果更接近于实际零构件的使用寿命。
Zheng S. -M. , Wang S. -Q. , Ma J. , Kong L. -N. , Sun X. -M. , Li S. Mental status of myocardial infarction patients undergoing autologous bone marrow stem cell transplantation.
郑淑梅，王霜秋，马静，孔令娜，孙雪梅，李双自体骨髓干细胞移植治疗心肌梗死患者心理状态调查分析。
The pole configuration at the S-pole side is arranged so that S-side magnet poles are coaxial to N-side core poles, and vice versa.
S极边的极配置是这样安排的，即S 极边的磁极与N 极边的铁极同轴，反之亦然。
Main characteristics of statistical accuracy for P-S-N curves are analyzed and the method for mean square error of P-S-N curves parameters by computer simulation is brought forward.
分析了反映P S N曲线统计精度的主要指标，提出了P S N曲线参数估计量的均方误差计算机模拟求法。
Confidence is incorporated into the P-S-N curves by a statistical principle of linear regression method and the C-P-S-N curves are then obtained.
考虑了常规p - S - N曲线预测结果的可信性，应用线性回归统计分析原理，将置信度引入到常规p - S - N曲线中，从而得到C - P - S - N曲线。
The invention provides a method for synthesizing (S)-N, N-dimethyl-3-hydroxyl-3-(2-thienyl) propylamine, and relates to a key intermediate of (S)-duloxetine.
N，N-二甲基-3-羟基-3-（2-噻吩基）丙胺的合成方法，涉及一种（S）-度洛西汀的关键中 间体。
The invention provides a method for synthesizing (S)-N, N-dimethyl-3-hydroxyl-3-(2-thienyl) propylamine, and relates to a key intermediate of (S)-duloxetine.
N，N-二甲基-3-羟基-3-（2-噻吩基）丙胺的合成方法，涉及一种（S）-度洛西汀的关键中 间体。
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