what would you call the inverse of lerp i.e. alpha = (n - low) / (high - low) ?
I'm leaning towards delerp, but I'm open to other ideas
oh wait shoot I went with "mix" instead of "lerp" for mollytime. derp. ok new question help me name the inverse of "mix" and no it is not xim

@aeva turning a mixture into its components in chemistry is called "separation" https://en.wikipedia.org/wiki/Separation_process

and there's a bunch of separation techniques you could maybe get inspiration from?

Separation process - Wikipedia