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.

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The operation that is the inverse of differentiation is called integration.

与微分相反的运算叫做积分.

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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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His participation in actual physical surveys stimulated his interest in differential geometry.

他亲身参加实际的物理测量,激起了他对微分几何学的兴趣.

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To some extent, his work pays dividends in differential equations.

他的工作在某种程度上给微分方程带来了好处.

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This high precision is necessary because g is obtained by differentiation.

之所以需要这样高的精度,是因为g是用微分法计算的.

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His doctoral dissertation on differential equations connected itself with existence theorems.

他论述微分方程的博士论文涉及到存在理论.

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His work remains mathematically in the realm of ordinary differential equations.

他的工作在数学上就停留在常微分方程的范围.

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These quantities are not perfect differential.

这些量不是全微分.

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Euler then shows how he can get the differential equation whose solutions are called cylinderical waves.

然后,尤拉展示他怎样得到其解称为圆柱波的微分方程.

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Systems of linear differential equations can be handled by using the methods of linear algebra.

线性微分方程组可以应用线性代数中的方法求解.

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An important case is the linear homogeneous second - order differential equation with constant coefficients.

一种重要的情形是常系数二阶线性齐次微分方程.

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The earliest work in differential equations was first disclosed in letters from one mathematician to another.

常微分方程最早的著作出现在数学家们彼此的通信中.

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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.

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The solution of the set of second - order linear differential equations depends on the eigenvalues of A.

二阶线性微分方程组(6.10)的解依赖于A的特征值.

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