(first, I second ThrustVectoring's comment about algebraic closure. That's a key part of understanding complex numbers) I recommend reading this[1] article. I

(first, I second ThrustVectoring's comment about algebraic closure. That's a key part of understanding complex numbers) I recommend reading this[1] article. I found it very enlightening about why complex numbers are useful. [1] https://acko.net/blog/how-to-fold-a-julia-fractal/ https://acko.net/blog/how-to-fold-a-julia-fractal/ edit: Warning - [1] requires WebGL.