Dividing by 1023 or 1024? The final verdict on analogRead

Referring to Reply #34 ...

I think the assumption that 4.00 to 4.99 gives 4 and 3.00 to 3.99 gives 3 is incorrect. I would expect 4.5 to 4.99 to give 5 and 3.5 to 4.49 to give 4

...R