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Eigenvalues and eigenvectors - Messaggi

#1 Pubblicato: 03/12/2020 17:34:07
Hervandil Santanna

Hervandil Santanna

0 apprezzamenti in 2 post.

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Hello,

Is there a built in function for extracting eigenvalues and eigenvectors from matrices?
Thanks
#2 Pubblicato: 03/12/2020 17:58:31
Alvaro

Alvaro

1.139 apprezzamenti in 1.805 post.

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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 Pubblicato: 03/12/2020 18:57:42
Alvaro

Alvaro

1.139 apprezzamenti in 1.805 post.

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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 (103,07 KiB) scaricato 1264 volta(e).
MEigen with rref.pdf (296,14 KiB) scaricato 867 volta(e).

Best regards.
Alvaro.
1 utenti hanno apprezzato questo post
sergio 04/12/2020 06:21:00
#4 Pubblicato: 03/12/2020 22:50:07
Jean Giraud

Jean Giraud

983 apprezzamenti in 6.866 post.

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Wrote

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


Visit this Companion ...

Maths eigenAll Companion.sm (66,98 KiB) scaricato 1368 volta(e).
#5 Pubblicato: 04/12/2020 08:52:49
Hervandil Santanna

Hervandil Santanna

0 apprezzamenti in 2 post.

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Thanks everybody.
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