apparent motion

• This paper briefly outlines the finding of irregularities of the lunar apparent motion & the lunar theories in history in the western world , and emphatically introduces copernicus ' s method for ascertaining numerical parameters and his lunar theory , which were adopted by xinfa suanshu
  摘要在简要介绍月亮视运动各种差的基础上，重建《新法算书》所载哥白尼月亮模型及其确定几何参数方法。