How to alternate columns of two matrix lists in one matrix?

jospercomp shared this question 4 months ago
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a={{"a11", "a12"}, {"a21", "a22"}}

b={{"b11", "b12"}, {"b21", "b22"}}

c={{"a11", "b11", "a12", "b12"}, {"a21", "b21", "a22", "b22"}}

How to alternate the columns of two matrix lists in one matrix for larger matrices?

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c=Transpose(Join(Zip({m1, m2}, m1, Transpose(a), m2, Transpose(b))))

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