I used those examples because they're things I've used to make art. It wasn't meant as an exhaustive list of things every artist should know; they're just two useful things that a budding code artist can learn if they want to, and reasonable things for someone to need help with.
I made generative art in the 80s on a ZX Spectrum just using for loops. Chuck in some high school trig if you like.
I guess the comment you're replying to is making the point that the tools can be very, very simple and OP probably already knows enough. The bit they are missing is "just start trying stuff"
