摘要
通过对二次曲线方程化简中的不变量法和坐标变换法的优缺点的讨论,利用两者之间的内在联系,引出并证明了三个新定理。新定理使得二次曲线的化简计算量小,画图快速方便。最后结合实例,说明三个定理在二次曲线方程化简中的具体应用。
The advantages and disadvantages of nonvariable method and coordinate transformation method in the simplification process of quadratic curve equation are discussed; Through the intrinsic link between the two,three new theorems are derived and proved. The new theorem makes the calculation simplify,and makes drawing graphs quick and easy. Finally,examples of simple methods illustrate the specific application of the three theorems in quadratic equation simplification.
出处
《南阳理工学院学报》
2009年第6期67-71,共5页
Journal of Nanyang Institute of Technology
关键词
二次曲线方程
坐标变换
不变量
化简
Quadratic curve equation
Coordinate transformation
Invariant
Simplifies
