How to calculate inverse of 3d array matrices with size 3*3*18 ?

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M
M 2022-5-17
回答： Steven Lord 2022-5-17
How to calculate inverse of 3d array matrices with size 3*3*18 ?

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KSSV
KSSV 2022-5-17
A = rand(3,3,18) ;
[m,n,p] = size(A) ;
B = zeros(m,n,p) ;
for i = 1:p
B(:,:,i) = inv(A(:,:,i)) ;
end

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Steven Lord
Steven Lord 2022-5-17
If you're using release R2022a or later you could use the pageinv function. But if you're planning to invert these matrices in order to multiply them by something else to solve a system of equations, I would advise you to use pagemldivide (also release R2022a) instead of using both pageinv and pagemtimes (release R2020b.)

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