Plotting complex functions

I wrote a blog post of sorts, spread over several tweets, about plotting functions of a complex variable.

Plot of cosine over a square centered at the origin of the complex plane.
Color = phase. Height = magnitude. pic.twitter.com/rOT7tAkfM9

- Analysis Fact (@AnalysisFact) February 11, 2020

Here are a couple of the images from the tweet stream. First Weierstrass's elliptic function.

And a phase plot for z⁵.

• Denver airport and Weierstrass a
• Analogies between Weierstrass functions and trig functions
• Uniform approximation paradox