Re: Recommend please : free math library

linq...@xxxxxxxxxxx wrote:
> Hi,
> I am writing a C++ program on network resource assignment and
> confliction overcoming. After sort out all kinds of requirement and
> constraints, it boils down to some large linear algebra matrix
> calculation.
>
> If I work it on a paper by hand, I can work out the solution. But the
> problem is I must implement this in C++ programming.
>
> I am wondering how to proceed here? I do not do scientific computing
> much, I know there are some Fortran libraries doing this kind of work.
>
> If there such free library for C++? Is there some entry level
> tutorial of doing this kind of thing?
>
> Thanks so much!

Sorry, I have one thing to add as example.

If I take an extreme example, here is the matrix I can sort out,

/ 1 0 -1024 0 \ * / x1 \ = / 1024 \
| 0 1 0 -1024 | | x2 | | 1024 |
| x3 |
\ x4 /

I think somehow I can express the above equation in C++, and the
purpose is to get the answer of x1, x2, x3 and x4.

You can see that there are multiple answers to the above equation, then
how are they presented from libraries?

.

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