How To Matrix Multiply 2x2

How To Matrix Multiply 2x2 I have the following code documentclass article begin document M bordermatrix amp x amp y cr A amp 1 amp 0 cr B amp 0 amp 1 cr end document But this code makes a matrix with and i would like it to be with How do i do this

Jun 16 2018 0183 32 Off topic instead of providing lots of empty columns presumably to increase the separation between quot real quot columns right it would be much more efficient if you a replaced all instances of amp amp with amp and b issued the command setlength arraycolsep 10pt A side benefit of the approach recommended here would be that you wouldn t have to increase the value of the Jun 12 2015 0183 32 I am hanging on this one since yesterday and was not able to find an example nor anything in the documentation maybe I am blind What i want is a matrix with border annotations BUT without the

how-to-multiply-2x2-matrices-youtube How To Matrix Multiply 2x2
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Jan 26 2014 0183 32 I want a small matrix but the only command I can find is smallmatrix which leaves the brackets out Is there a simliar one that includes brackets

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