虽然这些计算无非是最基本的三角形和代数计算，但是所使用的公式非常复杂。
Although these calculations are nothing more than basic trigonometry and algebra, the formulas are very complicated.
这些基本的命令行工具非常强大，但是不够友好，而图形化工具虽然易于使用，但是不强大。
The basic command-line tools are very powerful but not pretty, and the graphical tool is easy to use but not powerful.
虽然Ruby on Rails是一个非常新、令人兴奋的框架，并且在Web社区中已经引起了人们相当的兴趣，但是它的核心架构仍然遵循在J2EE中发现的基本模式。
While Ruby on Rails is a very new and exciting framework that has generated considerable interest in the Web development community, the core architecture follows the basic patterns found in J2EE.
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