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Ethiopian multiplication: Difference between revisions
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print(ethiopian(17, 34))</lang>
=={{header|Mathematica}}==
<lang Mathematica>IntegerHalving[x_]:=Floor[x/2]
IntegerDoubling[x_]:=x*2;
OddInteger OddQ
Ethiopian[x_, y_] :=
Total[Select[NestWhileList[{IntegerHalving[#[[1]]],IntegerDoubling[#[[2]]]}&, {x,y}, (#[[1]]>1&)], OddQ[#[[1]]]&]][[2]]
Ethiopian[17, 34]
->578</lang>
=={{header|Metafont}}==
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