Matrix multiplication: Difference between revisions
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<lang ruby>def matrix_mult(a, b) |
<lang ruby>def matrix_mult(a, b) |
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a.map do |ar| |
a.map do |ar| |
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b.transpose.map |
b.transpose.map { |bc| ar.zip(bc).map(&:*).inject(&:+) } |
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ar.zip(bc).map(&:*).inject(&:+) |
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end |
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end |
end |
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end</lang> |
end</lang> |
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