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Cartesian product of two or more lists: Difference between revisions

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Cartesian product of two or more lists (view source)

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[[File:Fōrmulæ - Cartesian product of two or more lists 03.png]]
 
[[File:Fōrmulæ - Cartesian product of two or more lists 04a04.png]]
 
'''Test case 2.''' With an empty list
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[[File:Fōrmulæ - Cartesian product of two or more lists 05.png]]
 
[[File:Fōrmulæ - Empty list a.png]]
 
[[File:Fōrmulæ - Cartesian product of two or more lists 06.png]]
 
[[File:Fōrmulæ - Empty list a.png]]
 
'''Test case 3.''' Extra credit. n-ary cartesian product
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[[File:Fōrmulæ - Cartesian product of two or more lists 07.png]]
 
[[File:Fōrmulæ - Cartesian product of two or more lists 08a08.png]]
 
[[File:Fōrmulæ - Cartesian product of two or more lists 09.png]]
 
[[File:Fōrmulæ - Cartesian product of two or more lists 10a10.png]]
 
[[File:Fōrmulæ - Cartesian product of two or more lists 11.png]]
 
[[File:Fōrmulæ - Empty list a.png]]
 
=={{header|Go}}==
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</pre>
=={{header|langur}}==
<syntaxhighlight lang="langur">val .X = fn(... .x) { .x }
{{works with|langur|0.8.11}}
 
<syntaxhighlight lang="langur">writeln mapX(f(... .x) .x, [1, 2], [3, 4]) == [[1, 3], [1, 4], [2, 3], [2, 4]]
writeln mapX(f(... .x) .xX, [31, 42], [13, 24]) == [[31, 13], [31, 24], [42, 13], [42, 24]]
writeln mapX(f(...X, .x)[3, .x4], [1, 2]) == [[3, 1], [3, 2]), ==[4, 1], [4, 2]]
writeln mapX(f(...X, .x) .x[1, [2], [1, 2]) == []
writeln mapX(.X, [], [1, 2]) == []
writeln()
 
writeln mapX f(... .x) .xX, [1776, 1789], [7, 12], [4, 14, 23], [0, 1]
writeln()
 
writeln mapX f(... .x) .xX, [1, 2, 3], [30], [500, 100]
writeln()
 
writeln mapX f(... .x) .xX, [1, 2, 3], [], [500, 100]
writeln()</syntaxhighlight>
 
Langurmonkey
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