Matrix multiplication: Difference between revisions

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m (→‎{{header|Lambdatalk}}: small change)
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<lang ruby>def matrix_mult(a, b)
a.map do |ar|
b.transpose.map do{ |bc| ar.zip(bc).map(&:*).inject(&:+) }
ar.zip(bc).map(&:*).inject(&:+)
end
end
end</lang>
Retrieved from "https://rosettacode.org/wiki/Matrix_multiplication"