 Wang Zhenyi died at the age of twenty-nine.When she knew she was dying, she gave her works and manuscripts to her best friend, Madam Kuai (1763–1827 A.D.) who eventually passed them on to her nephew, Qian Yiji (1783–1850 A.D.), who was a famous scholar of the time.He compiled her work into "Shusuan jiancun" or Simple Principles of Calculation.