Imath是fortran编写的库查询目录，了解imsl库的功能-Imath is a searchable directory fortran library prepared to understand the function of the library imsl

sql查询 当有相同字段值的时候如何查询出来只显示一个，例如 a 数学 80 a 语文90 可以只显示一个a字段-sql query how to query when the same field values ​ ​ show only one example, a math and a 80 language 90 can only display one a field

一个具有数学运算功能的Dll模块的开发，环境为VC++ , 不多说了，经测试，好用-Dll module of a math function development, environment VC++, not much to say, tested, easy to use