Eigenvalues and eigenvectors

#1 Posted: 12/3/2020 5:34:07 PM

Hervandil Santanna

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Hello,

Is there a built in function for extracting eigenvalues and eigenvectors from matrices?
Thanks

#2 Posted: 12/3/2020 5:58:31 PM

Alvaro Diaz Falconi

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Hi. Try this plugin

https://en.smath.com/forum/yaf_postst1918_DotNumerics.aspx

There you have dn_LinAlgEigenvalues and other for Eigenvectors

Best regards
Alvaro

#3 Posted: 12/3/2020 6:57:42 PM

Alvaro Diaz Falconi

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This is my attempt for do eigenvectors without plugins. Sometimes give better values than dot numerics, and other times fails, because I haven't a simple code for do the pseudo inverse for this code, and use SMath's inverse() which have some bugs.

MEigen with rref.sm (103 KiB) downloaded 49 time(s).
MEigen with rref.pdf (296 KiB) downloaded 44 time(s).

Best regards.
Alvaro.

1 users liked this post

sergio 12/4/2020 6:21:00 AM

#4 Posted: 12/3/2020 10:50:07 PM

Jean Giraud

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