大学物理 ›› 2007, Vol. 26 ›› Issue (5): 15-15.

• 著者文摘 • 上一篇    下一篇

单摆运动周期近似公式的数值推导及修正

鞠衍清[1] 张风雷[2]   

  1. [1]辽东学院科研处,辽宁丹东118003 [2]辽东学院实验中心,辽宁丹东118003
  • 出版日期:2007-05-25 发布日期:2007-05-20

Approximate formulas of a simple pendulum: numerical derivation and comparison with MATLAB

  • Online:2007-05-25 Published:2007-05-20

摘要: 运用MATLAB软件,采用数值计算的方法,得出单摆运动周期的两个新的近似公式.同时,对原有文献报道的运用解析方法推导出的近似公式进行比较和修正.

关键词: 单摆, 周期, 数值计算, MATLAB

Abstract: Two approximate formulas with high accuracy are derived numerically with MATLAB. By charts and error analysis, these two formulas and the approximate formulas proposed by other authors are compared with the exact results obtained by MATLAB programs. The latter formulas are also modified by optimization method. It demonstrates that using scientific computation software to solve nonlinear problems is an easy and accurate way.

Key words: simple pendulum, period, numerical calculation, MATLAB

中图分类号: 

  • O312