二次方程,是一种整式方程,其未知项的最高次数是2,且各项未知数的次数只能是自然数。比如根号x加x的平方等于1,这样未知数的的次数含有非自然数,就不是一元二次方程了。如果一个二次方程只含有一个未知数 x,那么就称其为一元二次方程,其主要内容包括方程求解、方程图像、一元二次函数求最值三个方面;如果一个二次方程含有二个未知数x、y,那么就称其为二元二次方程,以此类推。
...tic 在进行区间效应分析时本文选用了CurveEstimation过程,并对该过程中的各种模型进行评价分析,选定以拟合二次方程(Quadratic)和拟合三次方程(Cubic)为模型进行分析,见(式2、3)。 拟合二次方程(Quadratic):Y=b0 b1x b2x2…
基于90个网页-相关网页
... linear r equation 线性方程 quadratic c equation 二次方程 the e least possible value 可能的值里最小的那个 ...
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完全二次方程 Complete quadratic equation ; Complete e quadratic equation
不完全二次方程 Incomplete quadratic equation ; iplete quadratic equation ; Incomplete e quadratic equation
可因式分解的二次方程 Factorable quadratic equation ; F actorable quadratic equation ; Factorable e quadratic equation ; quadratic equation
双二次方程 [数] biquadratic equation
全二次方程 complete quadratic ; complete e quadratic
二次方程式论 quadratics ; quadraticquadratics
二次方程判别式 quadratic discriminant ; discriminant of quadratic form
叫做一元二次方程 quadratic equation in one unknown
隐二次方程 [数] implicit quadratic equation
到1545年,卡达诺编写了有关二次方程的著作。
By 1545, Gerolamo Cardano compiled the works related to the quadratic equations.
对很多人来说,二次方程是很恐怖的。
The quadratic equation may have instilled horror in many of us.
在高中代数学里,你学习了标准二次方程序。
In high-school algebra, you learned that the standard quadratic equation.
If you knew only the third derivative of the function, you can have something quadratic in t without changing the outcome.
如果方程里有三阶导数,你就可以引入一个二次项,但是结果却不会变
So here I've written for the hydrogen atom that deceptively simple form of the Schrodinger equation, where we don't actually write out the Hamiltonian operator, but you remember that's a series of second derivatives, so we have a differential equation that were actually dealing with.
这里我写出了,氢原子薛定谔方程的,最简单形式,这里我们实际上,没有写出哈密顿算符,但是请记住那你有,一系列的二次导数,所有我们实际上会处理一个微分方程。
They are going to accompany particles surely as every quadratic equation has two solutions.
他们是成对的粒子,正如每个二次方程都有两个根一样
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