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Can anyone explain what this means. "Warning: Matrix is ​​singular to working precision. "

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Relly Syam
Relly Syam il 27 Mar 2021
Commentato: Relly Syam il 27 Mar 2021

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DGM
DGM il 27 Mar 2021
For the future, post code using the formatting tools available to you. Do not post pictures of code. Nobody can run a picture of code.
The message means that some variable is singular or near-singular. In other words, it is not an invertible matrix.
If said matrix conceptually should be invertible, then you'll have to figure out why it's not.
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John D'Errico
John D'Errico il 27 Mar 2021
While someone might have tried to look at the code to see what the matrix Ek is composed of, there is no way to do so from a picture of code. So this answer says it all. +1

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