Cartesian product of two or more lists: Difference between revisions

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 </pre>
 =={{header|langur}}==
+{{works with|langur|0.8.11}}
-We could use mapX() to map each set of values to a function, but this assignment only requires an array of arrays, so we use the X() function.
+<syntaxhighlight lang="langur">writeln mapX(f(... .x) .x, [1, 2], [3, 4]) == [[1, 3], [1, 4], [2, 3], [2, 4]]
+writeln mapX(f(... .x) .x, [3, 4], [1, 2]) == [[3, 1], [3, 2], [4, 1], [4, 2]]
-{{works with|langur|0.8.3}}
-<syntaxhighlight lang="langur">writeln X([1, 2], [3, 4]) == [[1, 3], [1, 4], [2, 3], [2, 4]]
+writeln mapX(f(... .x) .x, [1, 2], []) == []
-writeln X([3, 4], [1, 2]) == [[3, 1], [3, 2], [4, 1], [4, 2]]
+writeln mapX(f(... .x) .x, [], [1, 2]) == []
-writeln X([1, 2], []) == []
-writeln X([], [1, 2]) == []
 writeln()
-writeln X [1776, 1789], [7, 12], [4, 14, 23], [0, 1]
+writeln mapX f(... .x) .x, [1776, 1789], [7, 12], [4, 14, 23], [0, 1]
 writeln()
-writeln X [1, 2, 3], [30], [500, 100]
+writeln mapX f(... .x) .x, [1, 2, 3], [30], [500, 100]
 writeln()
-writeln X [1, 2, 3], [], [500, 100]
+writeln mapX f(... .x) .x, [1, 2, 3], [], [500, 100]
 writeln()</syntaxhighlight>
@@ Line 3,004: / Line 3,002: @@
 []
 </pre>
 =={{header|Lua}}==
 === Functional ===