FIPS 203 is not a math paper, it's a specification, giving concrete algorithms that use aforementioned variable names. Maybe they should use more descriptive va

FIPS 203 is not a math paper, it's a specification, giving concrete algorithms that use aforementioned variable names. Maybe they should use more descriptive variable names in the spec (you could tell them about it - they accept and respond to feedback from the public), but in the meantime, I think it's more useful for an implementation to use the same variable names as the spec.