15th century), courtesy name Xinmin (信民), art name Zhu Yi Weng (主一翁), was a Chinese accountant, mathematician, and writer of the Ming dynasty who in 1450 published the arithmetic treatise Jiuzhang Suanfa Bilei Daquan (九章算法比類大全, "Complete Description of the Nine Chapters on Arithmetical Techniques").

[1] According to the 1488 foreword to Wu Jing's book written by Xiang Qi (項麒), a Ministry of Justice administrator who also hailed from Renhe (仁和, modern Hangzhou), Wu apparently worked as an accountant for several local officials and had a hand on the census, land surveys, and taxations of Zhejiang province.

[3] Every chapter begins with a topic from an "ancient" mathematical book, followed by Wu Jing's explanation of how real-life problems are solved with arithmetics.

[6] The Ming-period mathematician Cheng Dawei criticized Wu's work as "disorganized and containing numerous mistakes" in his Suanfa tongzong (1592).

[8] He also proposed using colors and visualization to solve math (especially geometric) problems, which may have influenced Chinese cartography.