Couple of differential equations.
几个微分方程。
Some of you may already have solved differential equations.
你们有些人也许已经，解出了微分方程。
This is called a normal system of differential equations.
这称为正规微分方程组。
In 1728 Euler gave differential equations for geodesics on surfaces.
1728年，奥伊勒绘出了曲面上测地线的微方程。
And so now we have to solve two coupled differential equations, which is a hopeless task.
我们要解决，两个成对的微分方程，这是无法解决的任务。
Calculus and Differential Equations are highly recommended for full understanding of the course.
要完全了解本课程，应必备微积分和微分方程的知识。
The overwhelming majority of nonlinear differential equations are not soluble analytically.
绝大多数非线性微分方程是不能用解析方法求解的。
“A PhD physicist with one course on differential equations is not competitive,” says Dr Schwartz.
“修过微分方程科目的物理学博士不再有竞争力”，Schwartz博士说道。
The more recent research on differential equations is concerned with the qualitative theory .
对微分方程更近代的研究是关于定性理论。
Do you position yourself to catch a ball by solving differential equations in your head, on the fly?
当你试图接住一个飞行中的球时，是否会通过解微分方程来确定自己的位置？
The theory of binaries, in terms of differential equations, is treated for the first time in this book.
二进制的理论，就微分方程而言，第一次在这本书里被对待。
"I had never taken a course in physics, or calculus, or differential equations," he wrote to Professor Lewin.
“我从来没上过一节物理或者微积分课程”他告诉Lewin教授。
The equations are extra nonlinear differential equations. the dexter function is not continuous in field of real number .
该方程右边的函数在实数域内不连续，是一个高度非线性微分方程组。
The domain decomposition is a numerically approximating solution to partial differential equations on parallel computers.
区域分解算法是在并行机上求解偏微分方程数值解的一种方法。
The main contents of first chapter are several difference schemes of first-order and second-order differential equations.
第一章有限差分方法主要内容是一阶和二阶的两点式、三点式和五点式差分方案。
College: Differential and Integral Calculus, Differential Equations, Linear Algebra, Probability and Statistics, Discrete Math.
大学：微积分，微分公式，线性代数，概率和统计，离散数学。
The ordinary differential equation singular boundary value problem is one of the most important branches of ordinary differential equations.
常微分方程边值问题是常微分方程理论研究中最为重要的课题之一。
By using this formula, orthogonal polynomial fitting algorithm for initial value problems of ordinary differential equations is established.
利用这一公式建立了常微分方程初值问题的正交多项式拟合算法。
Instead, to demonstrate the "red effect" I should have used an image of an elderly man solving a system of differential equations using a red pen.
相反，为了证明“红色效应”，我应该使用一张一个老男人用红笔求解微分方程系统的图像。
Over 1200 videos lessons covering everything from basic arithmetic and algebra to differential equations, physics, chemistry, biology and finance.
可汉学院（Khan Academy） -超过1200个视频教程，内容涵盖自基础算术、代数至微分方程、物理学、化学、生物学和金融学。
With variable substitution, several kinds of linear differential equations are solved and several sufficient and necessary conditions are obtained.
借助于变量代换，求解几类线性微分方程，并得到了几个求解的充分必要条件。
To solve the differential equations, we divide the sphere into two parts: inner part - a sphere with small radius and outer part - a spherical shell.
在微分方程求解过程中，把整个球体分成两部分：内部是球心附近的一个小球，外部为一球壳。
For the equations course, I was given a set of unpublished lectures that emphasized existence proofs and uniqueness of solutions to differential equations.
在方程课上，我听了一系列未公开的演讲，强调的是微分方程的解的存在证明及其唯一性。
I had to take a few extra courses during the next year, and I chose reading courses in modern algebra and differential equations for the summer afterwards.
在接下来的一年里我不得不上额外的几门课程，我选择在接下来的暑假修完近世代数和微分方程。
I had to take a few extra courses during the next year, and I chose reading courses in modern algebra and differential equations for the summer afterwards.
在接下来的一年里我不得不上额外的几门课程，我选择在接下来的暑假修完近世代数和微分方程。
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