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Matrix addition and subtraction

 


A

B

1

[[3,5],[2,8]]

[[4,6],[2,4]]

2

=A1.(~++B1(#))

3

=A1.(~--B1(#))

A2 Add the elements of matrix A1 and B1,return [[7,11],[4,12]]

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A3 The elements ofA1 and B1 are subtracted,return [[-1,-1],[0,4]]

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