quadratic curve
二次曲线：一种代数方程为二次方程的曲线
常用释义
英式发音
美式发音
基本释义
- 二次曲线：一种代数方程为二次方程的曲线，通常表示为y=ax^2+bx+c的形式。
例句
-
1·The results show that the trace is similar to the quadratic curve predicted by theory.试验结果表明秸秆抛出后的轨迹遵从抛物线规律，同理论预测的结论一致。
-
2·The relation between Kuptake of tobacco leaf and potassium levels was a quadratic curve.烟叶吸钾量与施钾量呈二次曲线关系。
-
3·When the generation cost function is quadratic curve, the new bargaining is compared with the former one.比较了发电费用曲线为二次曲线时新的定价方式与已有定价方式的关系。
-
4·Feedback control is a parameter self tuning fuzzy controller and the burn through point is calculated by quadratic curve method.反馈部分为参数自调整模糊控制器，终点的计算采用二次曲线拟合法。
-
5·The quadratic curve is the necessary and sufficient condition of the noncentral curve as well as the equation's representative form.二次曲线为非中心曲线的充要条件及方程表示形式。
-
6·The problem of attaining the tangent equation of a certain point on a quadratic curve is basically solved in plane analytical geometry.平面解析几何对“求过二次曲线外的点所引曲线切线的方程”的问题，未给出一般的方法和公式。
-
7·The paper, through analyzing the forming of the amplitude spectrum of the echo, proposed a new method using quadratic curve fitting for it.本文针对这种情况，对连续波雷达回波频谱幅度产生原因进行分析，提出了二次曲线拟合频谱幅度来估计加速度的方法。
-
8·Problems about the existence of midpoint chord of quadratic curve is worthy of discussing in the study of the theories about quadratic curve.二次曲线中点弦存在性问题的探讨，对二次曲线的研究有着及其重要的意义。
-
9·In this paper, we discuss some properties of the reversion for central quadratic curve on the basis of general reversion definitions and its transformations.在有心二次曲线的反演定义、变换式的基础上，推导出此种反演变换的一些性质，通常的关于圆的反演的性质可作为它的特例而得到。
-
10·A new calculation is presented, in which the given functions or curves defined by dispersed coordinate points are approximated by quadratic curve in several parts.本文提出将给定函数或离散坐标点定义的曲线，分段用二次曲线拟合的计算方法。
同义词