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Eigenvalues and eigenvectors - Messages

#1 Posted: 2020/12/3 17:34:07
Hervandil Santanna

Hervandil Santanna

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Hello,

Is there a built in function for extracting eigenvalues and eigenvectors from matrices?
Thanks
#2 Posted: 2020/12/3 17:58:31
Alvaro

Alvaro

1,106 likes in 1,784 posts.

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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: 2020/12/3 18:57:42
Alvaro

Alvaro

1,106 likes in 1,784 posts.

Group: User

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 (103.07 KiB) downloaded 963 time(s).
MEigen with rref.pdf (296.14 KiB) downloaded 588 time(s).

Best regards.
Alvaro.
1 users liked this post
sergio 2020/12/4 06:21:00
#4 Posted: 2020/12/3 22:50:07
Jean Giraud

Jean Giraud

983 likes in 6,866 posts.

Group: User

Wrote

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


Visit this Companion ...

Maths eigenAll Companion.sm (66.98 KiB) downloaded 1066 time(s).
#5 Posted: 2020/12/4 08:52:49
Hervandil Santanna

Hervandil Santanna

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Group: User

Thanks everybody.
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