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anyley/matrix_multiple.rb

Last active October 15, 2017 13:24
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matrix_multiple.rb
def matrix_mult(a, b)
a.map do |ar|
ar.each_index.map do |aci|
b.each_with_index.reduce(0) do |sum, (br, bri)|
sum + ar[bri] * br[aci]
end
end
end
end
def m_mult(a, b)
a.map { |ar| ar.each_index.map { |aci| b.each_with_index.reduce(0) { |sum, (br, bri)| sum + ar[bri] * br[aci] }}}
end
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