For the equations course, I was given a set of unpublished lectures that emphasized existence proofs and uniqueness of solutions to differential equations.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。

youdao

Mathematical equations, from simple algebraic ones to the more challenging differential equations, have allowed us to summarize an enormous amount of physical phenomena into a simple format.

数学方程，从简单的代数式到富有挑战性的困难的微分方程，这些简洁的模式都允许我们把一个巨大的物理现象纳入其中。

youdao

Ok, we've also seen how to look at equations of lines, and those were of a slightly different nature because we've been doing them as parametric equations.

我们还学过怎样理解直线方程，它们有些特性，因为我们是从参数方程角度理解。

youdao

Coll says NATO plans to create an environment of security in Kandahar that would allow Afghans to create fresh political equations.

VOA: standard.2010.05.28

We've used the fundamental equations that are hiding down here, out of sight but never out of mind.

我们利用了,写在这里的基本方程，虽然没有注意它但却时时刻刻记者它。

麻省理工公开课 - 热力学与动力学课程节选

But we can use equations that describe waves to describe matter, and that's what we're going to be doing today.

但我们可以用描述波的方程,来描述物质，这就是我们今天要做的。

麻省理工公开课 - 化学原理课程节选

We have been saying since 2005 in our paper at physicsnext.org that, while different observes will measure different times in many cases, Einstein time-dilation equations are wrong, and we give the correct equations.

FORBES: New Evidence Casts Doubt On Faster-Than-Light Neutrinos

He rewrote the equations of general relativity to make them compatible with quantum mechanics.

ECONOMIST: A new ��theory of everything�� is gaining ground

When behavioural economists packaged emotion into equations, mainstream economists were mostly happy to entertain them.

ECONOMIST: Economics focus