摘要
采用级数展开的方法，对《一个单摆周期近似公式》一文中所给出的近似单摆周期公式提供了理论依据，并且还可以得到精度更高的近似公式；同时，通过与其他近似公式的对比，说明该近似公式的精度可提高1-2个数量级．
Based on the series expansion, we give a theoretical foundation for the approximate period formula of a simple pendulum which proposed in Ref. [ 8 ]. With this method, we propose a higher precision formula. In comparison with other approximate expressions, the accurate degree of the present formula is increased about 1 - 2 or- der of magnitudes.
出处
《大学物理》
北大核心
2008年第9期16-18,共3页
College Physics
关键词
单摆
周期
近似解
simple pendulum
period
approximate formula
