单摆周期几种近似公式比较

The Approximate Solution of the Period of a Simple Pendulum

导出了单摆运动周期的三种近似公式,并与椭圆积分得到的周期严格解进行比较,根据实际问题的不同精度要求,选择恰当的近似公式.

Three approximate solutions of the period of a simple pendulum are abtained, and are compared with strict (solution) of the period of a simple pendulum by lintegral of lellipe. According to the need for varint the precision, (appropriate) approximate solution should be selected.