I think this is a great project to refresh algebra and whatever language you choose to use. I implemented a ray tracer with Kotlin just to learn the language,

I think this is a great project to refresh algebra and whatever language you choose to use. I implemented a ray tracer with Kotlin just to learn the language, and got to use many features and learn them by practice. Even finding and fixing bugs were fun, as I had to guess where the physics of the light had gone wrong.