发布网友 发布时间:2022-05-02 02:19
共2个回答
热心网友 时间:2022-06-26 21:44
初步介绍 数值偏微分方程(组)。后面的意思就是 数值偏微分方程(组). 前面那个是 序幕 之类的意思。热心网友 时间:2022-06-26 21:44
翻译:if it is not possible to evaluate the integral in (9.4) in terms of familiar functions ,such as polynomials , rational functions ,trigonometric and inverse trigometric function ,logarithms ,and exponentials,sitll we consider the differential equation as having been solved if the solution can be expressed in terms of integrals of known functions.in actual practice ,there are various methods for obtaining approximate evaluations of integrals which lead to useful information about the solution automatic-high-speed.computins machines are often designed with this kind of problem in mind .