MathCast is an equation editor, an application that allows you to input mathematical equations. These equations can be used in written documents, webpages, databases, etc. They could be rendered graphically to the screen, to picture files, or to MathML - today's leading standard language for describing mathematics.

本课程系统地讲解了SESSION这个知识点，主要讲解了Session的概念，它是如何产生，如何工作，如何存放和如何消亡的，以及Session在JavaWeb中的体现和操作，在最后用一个小例子来演示了如何通过Servlet来操作Session。学习本课程可以理解Session机制，javax.servlet.http.HttpSession及HttpSession常见问题。免费试听地址：http://www.itcast.net/portal/courses/unit/124