trapezoidal method

Using the classical model and piece-wise linearization technique, this paper presents a novel method for fast numerical simulation and assessment of power system transient stability. The method adopts the implicit trapezoidal rule and the relaxation method instead of the direct but time-consuming matrix inversion.

在使用电力系统经典模型和分段线性化的基础上，本文利用隐式梯形积分规则并结合矩阵求逆运算的松驰方法，推导出一种电力系统暂态稳定性数值仿真及快速判断方法。

Different from above mentioned two methods, the rupture mode of the trapezoidal tear test is simple and the testing results are stable. Thus, this method is recommended for testing tear strength of architectural membrane materials.

梯形撕裂法的撕裂模式单纯，试验结果也较稳定，是值得推荐的膜材料撕裂强度测试方法。

This research apply Fuzzy Mathematics to Shanghai Exponential Method and puts forward the Fuzzy Shanghai Exponential Method Which introduces the semi-trapezoidal membership function and the multiple slope membership function to the evaluation function.

将模糊数学应用于上海指数法，在评价函数中引入半梯形隶属函数和倍斜率隶属函数，提出模糊上海指数法；

Taking into account prospect theory instead of the expected utility theory being more in line with the actual human decision-making mode, this paper use the proposed prospect value determination method based on prospect theory and intuitionistic trapezoidal fuzzy numbers to compute single attribute value in the multi-attribute decision-making.

考虑到不确定条件下前景理论相对期望效用理论更符合人类实际的决策模式，运用上述直觉模糊环境下基于多参考点的前景价值确定方法来计算直觉梯形模糊多属性决策中方案单属性价值。

Polynomial, transcendental function, new quadratic curve, B-spline and NURBS have been used in expression of hull molded line, trapezoidal method, Simpson method have been used in static calculation.

在船体型线的表达方面有多项式、超越函数、新二次曲线、B样条函数、非均匀有理B样条函数等。