# Complex colormap in Julia Plots?

**URL:** <https://discourse.julialang.org/t/complex-colormap-in-julia-plots/84212>\
**Category:** General Usage\
**Tags:** question, images, plots, complex-numbers\
**Created:** [July 14, 2022, 8:33am UTC](https://discourse.julialang.org/t/complex-colormap-in-julia-plots/84212 "2022-07-14T08:33:16Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![empet](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/empet/32/221303_2.png) [@empet](https://discourse.julialang.org/u/empet)\
**Post date:** [July 14, 2022, 6:02pm UTC](https://discourse.julialang.org/t/complex-colormap-in-julia-plots/84212/4 "2022-07-14T18:02:48Z")

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The method of visualization of a complex function illustrated in [this other post](https://discourse.julialang.org/t/how-to-set-ticklabels-for-an-image-within-the-range-of-x-and-y/63637) is very popular in mathematics community. It implements one of the methods presented by Elias Wegert in his excellent book, [https://link.springer.com/book/10.1007/978-3-0348-0180-5](https://link.springer.com/book/10.1007/978-3-0348-0180-5).  
In this book it is proved that HSV colors can encode all properties of a complex function, zeros and poles positions, analysing the plot patterns, according to the so called argument principle from Complex Function Theory.  
Also, Elias Wegert publishes each year a calendar, Complex Beauties, associating to each month a topic related to a celebrated complex function. Hence to see different methods of visulizing complex functions, you can browse the collection of calendars [https://tu-freiberg.de/en/fakult1/ana/institute/institute-of-applied-analysis/organisation/complex-beauties](https://tu-freiberg.de/en/fakult1/ana/institute/institute-of-applied-analysis/organisation/complex-beauties).

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