Every function whose derivative is linear is a quadratic function . 任意一个导数为线性函数的函数都是二次函数。
Or c , the migration method of graphing quadratic functions 或者c ,二次函数图像平移法
On imaginary quadratic function fields with ideal class group of exponent 2的虚二次函数域
On quadratic function topological conjugacy 关于二次函数的拓扑共轭
The relation between two function ' s extremum point and the dollar function 正定性与二次函数的最值及二元函数的极值
The maximum of quadratic function and the extremism of two variable function based on the positive deficite property 正定性与二次函数的最值及二元函数的极值
Comparing stress distribution between elastic and plastic under unrepaired and repaired . comparing the crack face outline difference between unpatched and patched model 在修补前， j是关于的二次函数；而修补后， j与按线性变化； 3
In our proposed method , both the objective function and the perfect reconstruction condition are expressed as a quadratic function of the prototype filter coefficient vector 该方法中，目标函数和完全重构条件均被表示成为原型滤波器系数矢量的二次函数形式。
This model indicated that minimal headway is quadratic function of the following vehicle speed as the following vehicle speed reduces ; rear - end collision will happen , when actual headway is less than certain value 追尾模型表明：最小车头距离是后车速度的二次函数，随后车速度急剧缩小；当实际车头距离小于该值时，则会发生追尾事件。
The students are believed in too . i did a teaching experiment on solving the maximum and minimum value of quadratic function in one variable with two different teaching ways : asking questions and dialogue . these two periods are studied and analyzed here 本人用提问与对话两种不同的教学方式对一元二次函数在闭区间上的最值这一数学内容进行了一次观察与分析的教学尝试，并对这两节课进行了个案研究与分析。
