WIP
GUI: egui + egui_plot + egui_tiles
Scripting language : RustPython / LuaJIT / Rhai / Rune / Mun / Custom ? It needs fast evaluation for exhaustive evaluation (checking error for every float in bounds).
https://github.com/stuffmatic/microcheby
https://en.wikipedia.org/wiki/Approximation_theory
https://en.wikipedia.org/wiki/Chebyshev_polynomials
https://numerical.recipes/book.html
https://en.wikipedia.org/wiki/Discrete_cosine_transform
https://en.wikipedia.org/wiki/Clenshaw_algorithm
https://mooooo.ooo/chebyshev-sine-approximation/
https://bitbashing.io/comparing-floats.html
https://github.com/chebpy/chebpy
https://sites.tufts.edu/atasissa/files/2019/09/remez.pdf
https://stackoverflow.com/questions/1914115/converting-color-value-from-float-0-1-to-byte-0-255