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I had a great idea. You know how we're always having to stop and solve differential equations, like when you're doing Fourier analysis, or using the Schr dinger equation?
我有个好主意,我们总会被迫停下工作去解某些微分方程式吧,比如你做傅里叶分析的时候或是用到薛定谔方程的时候?
《The Big Bang Theory Season 4》《生活大爆炸 第四季》
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Couple of differential equations.
几个微分方程。
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And let's not even talk about differential equations.
我们不再讨论微分方程序。
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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。
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This is called a normal system of differential equations.
这称为正规微分方程组。
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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。