Hello I was wondering if there is a function to turn this matrix [Screenshot2022-04-12at17.19.50.png] into this matrix [Screenshot2022-04-12at17.18.48.png] Thanks in advance, Tommaso

You want to look into ArrayReshape.

Thank you for the replies. ArrayReshape did it for me!

I found this in the documentation for Flatten: m = {{{{0, 0}, {0, 0}}, {{1, 0}, {0, 1}}}, {{{1, 0}, {0, 1}}, {{0, 0}, {0, 0}}}}; m // MatrixForm Flatten[m, {{1, 3}, {2, 4}}] // MatrixForm

Another solution is given here [image] Inverse of a (m,m)-Matrix whose elements are (n,n)-Matrices Ideas By Albrecht Küster ( hcak@gmx.de ) and Hans Dolhaine ( h.dolhaine@gmx.de ) In a foregoing post https : // community.wolfram.com/groups/-/m/t/1651695?p…

Flatten array without loosing "structure"

Questions

hdolhaine (Hans Dolhaine) April 13, 2022, 9:30am 5

Another solution is given here

wcomABdivmat.nb (367 KB)

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Flatten array without loosing "structure"

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