摘要
以一类解二阶微分方程的显式三步方法为基础,构造了一个三角拟合显式三步方法,给出了新方法的局部截断误差,对新方法做出了稳定性分析,数值实验的结果表明新方法在求解周期性初值问题的微分方程时具有明显高效性.
A trigonometrically fitted explicit three-step method is developed based on an explicit three-step method for periodic initial value problems. Stability of the new derived method is analyzed and the numerical illustrations show that the new method is more efficient than some well-known methods.
出处
《常熟理工学院学报》
2012年第4期24-27,共4页
Journal of Changshu Institute of Technology
关键词
三角拟合
三步方法
周期性初值问题
trigonometrically fitted
explicit three-step method
periodic initial value problems