mathober day 2: inverted

hiii!! it's day two of mathober i guess!! day two's prompt is inverted. for some reason the first thing that came to mind was the turning a sphere inside out video. i don't know why this is the first thing that came to mind, and i did think of better things that represent inverted, but for this i am drawing the first thing that comes to mind, so i sketched this.

it ended up looking better than i expected tbh. drawing circles is hard :( also i now have tags on these posts!! that's exciting!!

i think i should study calculus now... i'll have another sketch for tomorrow :3