1) differential equation of one order
一阶二次微分方程
1.
In this paper,we prove a theorem on solving a differential equation of one order by polar transformation.
本文给出了一阶二次微分方程在极坐标变换下的求解定理,提供了一种求解一阶二次微分方程的方法和途径。
2) second-order quadratic differential equation
二阶二次微分方程
1.
Three new second-order quadratic differential equations were put forward and their integrability was demonstrated with the method of order degradation and linearization.
提出新的三类二阶二次微分方程,分别借助降阶法、线性化法,论证其可积性,获得相应方程类型的通解公式,并列举了实例。
3) first order and third power differential equation
一阶三次微分方程
4) first-order homogenous linear fuzzy differential equation
一阶齐次模糊微分方程
6) degree of differential equation
微分方程的阶次
补充资料:二阶线性齐次微分方程
二阶线性微分方程的一般形式为
ay"+by'+cy=f(1)
其中系数abc及f是自变量x的函数或是常数。函数f称为函数的自由项。若f≡0,则方程(1)变为
ay"+by'+cy=0(2)
称为二阶线性齐次微分方程,而方程(1)称为二阶线性非齐次微分方程。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条