《明史·志·卷十一》
推算黄道加时定积度：将定朔弦望加时中积，用它下面的盈缩定差，盈相加，缩相减，就得到了。
推黄朔弦望加时中定积度置定朔弦望加时中积，以其下盈缩定差盈加缩之，即得。
Calculation of the fixed accumulation of the ecliptic: Add the fixed new moon string to the middle accumulation of time, and use the positive and negative difference below it. Add the positive phase and subtract the negative phase, and then you get it.