adjmat unrecognized function in Matlab

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Diana
Diana 2021-2-15
回答： Jian Yuan 2021-3-19
I'm trying to run a code and it has the function
t5 = diff(lambda);
t5 = adjmat(t5);
but I got the error that adjmat unrecognized function , so what is the problem?
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Diana
Diana 2021-2-15
The theory is the part of the differential, but the adjmat is not related to theory
Walter Roberson
Walter Roberson 2021-2-15
At the top of your function put in
adjmat = @(M) mat2gray(M);

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回答（2 个）

Matt J
Matt J 2021-2-15
Is adjmat supposed to be computing the adjugate of the matrix t5. If so, you might be able to use this instead,
https://www.mathworks.com/matlabcentral/fileexchange/12692-adjugate-adjoint-of-a-square-matrix
Jian Yuan
Jian Yuan 2021-3-19
After diff function, the dimention of an array decreased by 1. I checked here Adjmat(t5) seems to align that. So you may try t5(:,1) = [] to replace t5 = adjmat(t5).

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