### Cubic Surfaces: ContourPlot3D

Mathematica programs written to draw the real lines on a cubic surface, and more generally algebraic hypersurfaces of $\mathbb{P}^3$. Code originally developed to help Stephen McKean, Daniel Minahan, Tianyi Zhang illustrate the paper https://arxiv.org/abs/2002.10367. This file illustrates a bunch of useful options for ContourPlot3D to make graphics look more professional.