《北史·列传·卷七十七》
然而刘晖所言大多不应验，张胄玄推算天文历法很精微细密。
然晖言多不中，胄玄所推步甚精密。
However, most of Liu Hui's predictions did not come true, while Zhang Zouxuan's calculations of astronomy and the calendar were very detailed and subtle.