实用的校正磁罗经自差计算程序

The useful calculating program for the correcting compass deviation

论述了利用袖珍计算机协助校正自差的计算程序，并列出了程序框图及有关的数学模型。利用本程序勿需再去查表求太阳方位，而且其精度高于查表获得的精度，并可自动地计算自差系数、剩余自差和绘制自差曲线，这是一种很适用的校正自差的计算程序。

This paper intrduces a calculating program for thecorrecting compass deviationhdped bypocket computor and gives the program block diagram and the relative mathematical model.Using this program,it's not necessary to look up the takle for sun's bearing and it's accuracyis better than that obtained from astronomical table. It also automatically calculates deviationcoefficient,surplus deviation and draws deviation curve,So,it's a very useful program forcorrecting the compass deviation.