查询词典 quadratic equation

By analytic geometry method and solving quadratic equation,a computer simulation algorithm of digital projection under arbitrary scanning locus was proposed.The algorithm is based on the rules of attenuation of monochromatic X-rays.Through mathematical modeling and computer simulation,digital projections of ellipsoid and cylinder in circular and helix scanning modes are exemplified respectively,which are proved to be correct by FDK and PI-line reconstruction algorithms.

介绍了一种利用解析几何和求解二次方程仿真任意扫描轨迹下的锥束射线投影数据算法，该方法基于单色射线贯穿物体的衰减理论，通过数学建模与计算机仿真，给出了椭球、圆柱两种典型模型分别在单圆、螺旋线扫描轨迹下的投影数据仿真结果，并利用FDK和PI线重建算法进行验证，证明了该种数值仿真方法的正确性。

A quadratic equation can be fitted to the correlation between air/fuel ratio and the first peak value of ionic current.

结合发动机运行中的实际情况，本文提出了一种判定及控制空燃比的方法。

As mentioned earlier, the linear form of a consistent error and the error curve in line with the quadratic equation of the curve, with a predictable size and shape.

如前所述，线性误差具有一致的形式，且误差曲线符合二次方程的曲线，具有可预测的大小和形状。

Numerical calculation of the specific roots of the quadratic equation, this is more important for engineering calculations.

详细说明：数值计算中的二次方程求根具体程序，这对于工程计算比较重要。

This program calculates the root of the quadratic equation with very common and simple algorithms.

这个程序能用非常普通和简单的算法来计算一个二次方程的根。

Usually, x is a quadratic equation, x has two different solutions.

通常，x是一个二次方程式，x有两个不同的解。

Given a quadratic equation ax2+bx+c=0, input a, b, c and find out the 2 roots of equation.

现有二次方程式，ax2+bx+c=0，输入a， b， c 并找出这方程式的两个根。

The beginning of this article gives the definition of elliptic curve, ellipse standard equation, and the long axis of oval, short, with an area of the formula of a binary quadratic equation of the circumstances under which the judge said to provide the basis of an oval, as well as the conditions in this the long axis of the ellipse, short, with an area of what is the formula?

本文开始给出了椭圆曲线的定义，椭圆的标准方程，及椭圆的长轴，短轴，面积公式，对一个二元二次方程在什么情况下表示椭圆提供了判断依据，以及在此条件下的椭圆的长轴，短轴，面积公式是什么？

The changes of partitioning ratio index for unit organ could be described by exponential equation and quadratic equation with different stem internode,leaf,petiole,and cotton bud and boll according to different internode positions on main stem and sympodial stem.

模型采用线性和指数方程描述了叶片、叶柄、主茎、分枝及蕾铃单位器官分配比例指数随GDD的动态变化过程；分别用指数方程及一元二次方程描述了叶片、叶柄、主茎、分枝及蕾铃单位分配比例指数随不同叶位、节位的动态变化过程。

Ellipsoid is given followed by the same definition of the standard ellipsoid equation, and the long axis of the ellipsoid volume formula of a ternary quadratic equation that the circumstances under which ellipsoid provides the basis to determine the final conditions in the ellipsoid three-ball, how long, the size of it?

接着同样给出椭球面的定义，椭球面的标准方程，及椭球的三轴长，体积公式，对一个三元二次方程什么情况下表示椭球面提供了判断依据，最后在此条件下椭球的三轴长又如何计算，体积呢？

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。