 She wrote an article called "The Explanation of the Pythagorean Theorem and Trigonometry," where she described a triangle and the relationship between the shorter leg of a right triangle, the long leg, and the triangle's hypotenuse all correctly.She admired the mathematician Mei Wending (1633–1721 A.D.).He was famous in the early Qing dynasty and wrote the book, "Principles of Calculation."