Jan C. Brammer JanCBrammer

## CanonicalReordering.ipynb

      
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                ptosco
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              August 14, 2020 20:31
            
              
                CanonicalReordering
              
          
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## multi_cartesian_product.rb
# Given an array of arrays s = [ [1,2,3], [4,5,6], ... ]
# compute the Cartesian product among the elements of s.

require 'pp'

s = [[1, 2], [3, 4, 5], [6, 7, 8, 9]]
pp s[1..-1].inject(s[0]){ |m,v| m = m.product(v).map(&:flatten) }
[[1, 3, 6],
 [1, 3, 7],
 [1, 3, 8],
	# Given an array of arrays s = [ [1,2,3], [4,5,6], ... ]
	# compute the Cartesian product among the elements of s.

	require 'pp'

	s = [[1, 2], [3, 4, 5], [6, 7, 8, 9]]
	pp s[1..-1].inject(s[0]){ \|m,v\| m = m.product(v).map(&:flatten) }
	[[1, 3, 6],
	[1, 3, 7],
	[1, 3, 8],