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.
The operation that is the inverse of differentiation is called integration.
与微分相反的运算叫做积分.
This is called a normal system of differential equations.
这称为正规微分方程组.
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.
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.
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.
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.
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.
These quantities are not perfect differential.
这些量不是全微分.
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.
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.
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.
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.
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.
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.