approximate solution to the equation

Therefore an algorithm is developed to (approximate) the limit state equation accurately around the true design point through iterative modifications for the design point solution.

由此提出一种算法，通过逐步修正求解得到的设计点以实现在设计点附近较高精度地逼近结构真实极限状态方程。

Under the framework of finite volume method, the Riemann approximate solver is applied to obtain the numerical solution of the equation.

模型在有限体积法框架下应用黎曼近似解求得耦合方程的数值解。

The approximate solution to the nonlinear differential dynamic equation of a swing is derived by using another simple method, which is very suitable for discussing in class.

用另一种方法导出了秋千非线性动力学微分方程的近似解，很适合课堂讨论。