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I would like to reproduce the plot shown in fig(b) from the link.

enter image description here

How can I obtain yellow, red, green and blue using the command? Let's say there are 4 roots in total. In this case roots will be {2, 1 + i,1 - i, -3 }. I'm trying plot something like in figure (b) of the above link by using the codes in a similar post.

List @@@ Table[ColorData[45, k], {k, 1, Length[roots]}];

Thanks, RM

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  • $\begingroup$ Welcome to the Mathematica Stack Exchange. I am afraid your question is not quite clear to me at the moment. Specifically, why would you want to "obtain" the four colors when you already have them? $\endgroup$
    – Syed
    Commented Mar 11, 2022 at 19:10
  • $\begingroup$ I'm trying to obtain something like figure (b) in hindawi.com/journals/jam/2014/539707/fig16 and I don't understand how command "ColorData" works... $\endgroup$
    – R. Madureira
    Commented Mar 11, 2022 at 19:14
  • $\begingroup$ roots is left undefined $\endgroup$
    – user49048
    Commented Mar 11, 2022 at 19:20
  • $\begingroup$ Yes, but roots will be finite distinct numbers (for instance, four numbers). $\endgroup$
    – R. Madureira
    Commented Mar 11, 2022 at 19:21
  • $\begingroup$ Yes, but it makes a difference. For instance if roots = {{1, 2, 3, 4, 5, 6}} then Length[roots] is 6. On the other hand, if roots = {{1, 2, 3, 4, 5, 6}, {1, 2, 3, 4, 5, 6}} then Length[roots] is 2. On top of that, different numbers will result in different plots. $\endgroup$
    – user49048
    Commented Mar 11, 2022 at 19:23

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