Adopt the iterative formula that forms Taylor's expansion of sine and cosine, and compute a graphic points are only calculated by 9 times addition. 采用正弦和余弦的泰勒展开式构造的迭代公式,计算一个绘图点只需9次加法。
Simultaneously, small parameter perturbation methods are employed to transform the problem of elastic wave scattering in cylindrical shell with a cutout into the iterative addition of a series of boundary value problems and to give a semi-analytical method for solving this problem. 同时,采用摄动方法,将含孔柱壳弹性波散射问题化成一系列边值问题解的迭加,给出分析求解本问题的半解析方法。
This method using the linear solution to gain the distortion parameters of the lens is able to prevent the parameters coupling in the nonlinear iterative optimization process in traditional methods. In addition, the real-time for calibration can be insured based on the simple operation of experimental equipment. 该方法线性求解镜头畸变参数,避免了传统方法非线性迭代优化过程中产生的参数耦合现象。实现该方法设备简单,操作方便,可以达到实时的效果。
Since the problem of adaptive bit-power allocation with the goal of energy efficiency optimization is a nonlinear problem, it is impossible to solve the problem by ordinal iterative addition among users. 由于以系统能效为优化目标的自适应比特-功率分配问题是一个非线性问题,不能通过用户之间的依次叠加来计算。
In view of the complexity of the neutron/ photonic transport equation, the source iterative method was used for solving in addition to some special circumstances which are difficult to solve by analytic method. 鉴于中子/光子输运方程的复杂性,除某一些特殊情况外很难用解析方法进行求解,本文采用比较保守的源迭代数值方法进行求解。