求助:如何解方程

shiyiming

能不能用sas来求解某一方程的根.先谢谢了!

shiyiming

This question is not a clear cut question.  The general answer is YES, MODEL, NLIN and many other SAS procedures can be used to solve system equations.  But, keep in mind that SAS is a numerical software, not symbolic, it will give you the numerical solution, not the analytical.  Besides, all the computations are on the domain of real number, it depends upon how do you formulate your equations.

shiyiming

Many thanks to you. I will try it with sas, I have solved it by using Matlab.
My equation isn't linear.

shiyiming

SAS的IML在求解方程方面应用较为方便，值得一试。

尤其是多元方程组，不用太多的编程即可实现复杂的方程求解过程。