1.the branch of algebra that deals with quadratic equations
1.Experimental Study of the Quadratics Rotary Orthogonal Combination Design was Used Balanced Fertilization to Chinese Chestnut
板栗配套施肥的二次旋转正交优化试验研究
2.A Brief Account on Four "Quadratics" in Elementary Algebra
浅谈初等代数中的四个“二次”