One day, Confucius asked his mother Yan Zhengzai to teach him the Wenwang Bagua (Eight Trigrams).She taught him once and he was able to master the calculation of Bagua.

• 留学解答资讯网:一天，孔丘让母亲教他文王八卦，颜征在叙述一遍，孔丘随即便掌握了八卦的演算方法。