Pinguin Dirk
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 Oct21 comment Finding specific compositions of an Integer ah, ok, I understood 1 and 1 (and also 2 and 2) cannot be neighbor. Got it! Oct21 comment Finding specific compositions of an Integer aren't there some lists missing in your output, such as e.g. {1,2,1,2,1,2}? Oct20 comment ReplaceAll a list of rules to an equation @Tyilo: Thanks for the accept, but usually it pays to wait a bit... there are most certainly other people out there with other ideas, better ideas. And you don't wanna scare them away, do you? Still, I am glad you like my approach! Oct20 answered ReplaceAll a list of rules to an equation Oct20 answered A one-liner to place some number of Graphics3D polytopes on a plane and to randomly assign colorations Oct18 comment What's wrong with my implementation of SquareFreeQ? +1 and I expanded a bit on your answer (see my answer), I hope you don't mind. Oct18 revised What's wrong with my implementation of SquareFreeQ? added 434 characters in body Oct18 answered What's wrong with my implementation of SquareFreeQ? Oct17 comment Concise way to generate multiset lists for constant k, one could also do: Flatten[Table[i, {i, 10}, {j, 3}]] Oct17 comment Formatting plot of symmetric points differently to asymmetric points something's broken in the second section of code, can you please check again? Oct16 comment Group list of lists by Total neat idea! Thanks for sharing/explaining Oct16 comment Simplifying expression with patterns (Replace) thanks for another idea, @Mr.Wizard. Added! Oct16 revised Simplifying expression with patterns (Replace) added 113 characters in body Oct16 comment Simplifying expression with patterns (Replace) @AndrewKor: see the edit Oct16 revised Simplifying expression with patterns (Replace) added 262 characters in body Oct16 comment Simplifying expression with patterns (Replace) @Mr.Wizard: thanks - and edited! Oct16 answered Simplifying expression with patterns (Replace) Oct16 comment Simplifying expression with patterns (Replace) looking at the example, I guess he wants the pattern to match for x only, not for x_ (i.e. x, y,...), or am I mistaken? (I am not quite sure) Oct16 reviewed Leave Open Organise a graph's vertices into levels Oct16 reviewed Leave Open Convert Integer to Real