Which algorithm eig () function use ?

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Abdullah Khan
Abdullah Khan 2013-9-10
评论： MD SHAHNAWAZ HUSSAIN 2019-3-12
Which algorithm eig () function use ?
I have to impliment on FPGA , can how can i find eig whithout using matlab functions , or very less

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回答（4 个）

Jan
Jan 2013-9-10
Which version of Matlab do you mean?
There are e.g. differences between Matlab 7.1 and Matlab 7.9. And even the same Matlab version produces slightly different results on different platforms.
Geert
Geert 2013-9-10
编辑：Geert 2013-9-10
Good question.
I always thought the default eigenvalue algorithm was the QR algorithm ( http://people.inf.ethz.ch/arbenz/ewp/Lnotes/chapter3.pdf ), but this is just a guess...
Abdullah Khan
Abdullah Khan 2013-9-10
Any version , gotta implement the ago on FPGA
Thanks
  2 个评论
Jan
Jan 2013-9-10
Do I understand correctly, that your question does not concern Matlab's eig() function, but that you are searching for a general algorithm? Then asking WikiPedia might be a better idea than a Matlab forum.
MD SHAHNAWAZ HUSSAIN
MD SHAHNAWAZ HUSSAIN 2019-3-10
can u plz tell me which algo has been used for eig() in matlab 2014a and 2018b?

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Christine Tobler
Christine Tobler 2019-3-11
There are different algorithms for solving eigenvalue problems, depending on the properties of the inputs. The most well-known standard library for linear algebra operations is LAPACK, which is open source. Here is a reference page on solving eigenvalue problems from LAPACK:
https://www.netlib.org/lapack/lug/node37.html
and here's a list of some LAPACK functions related to solving the eigenvalue problem:
http://www.netlib.org/lapack/explore-html/d9/d8e/group__double_g_eeigen.html
If you need MATLAB code that calls EIG to be translated to C code, you could also look at MATLAB Coder, which will generate C code to solve, for example, an eigenvalue problem if EIG is used.

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