He was a contemporary of both Qin Jiushao and Li Zhi, which we know from the dates on which his texts appeared, showing that he lived towards the end of the Nan (Southern) Sung dynasty.
Siya ay isang kapanahon ng parehong Qin Jiushao at Li Zhi, na kung saan namin malaman mula sa petsa na kung saan lumabas ang kanyang mga teksto, na nagpapakita na siya ay nanirahan sa huli ng Nan (Southern) Sung dinastya.