Floats are, by their very nature, imprecise, so "excluding either" would not work up to a point. I would not want my choice of element to depend on the result o

Floats are, by their very nature, imprecise, so "excluding either" would not work up to a point. I would not want my choice of element to depend on the result of 0.1 + 0.1 (e.g. when multiplying by 10).