$1-2^{-23}$ and $2-2^{-22}$ both represents floating point representation or normalised representation.But are those two represent same value or both have different value? Is floating point representation same as IEEE representation??

  • 1
    $\begingroup$ The first is close to 1, the second is close to 2, so they are obviously different. Are those really values you wanted to ask about? $\endgroup$ – Alexey Romanov May 20 '19 at 6:56
  • $\begingroup$ I mean this in denormalised number representation it is $(1−2^{−23})×2^{−126}$, and in normalised number it is represented like $(2−2^{−22})×2^{127}$, but I have not got how this comes?? $\endgroup$ – Srestha May 20 '19 at 7:54
  • $\begingroup$ @Srestha Could you edit your question to include this clarification? $\endgroup$ – Discrete lizard May 23 '19 at 15:47

Is floating point representation same as IEEE representation?

Well, not exactly. Floating point is more the abstract idea for "a fractional number" (of arbitrary magnitude) or rather "a number of varying precision.

On the other hand, IEEE(754) is a specific implementation of this idea. Other standards exist and all of them implement "floating point" numbers.

| cite | improve this answer | |
  • $\begingroup$ what is range of max and min floating point number in normalised and denormalised form?? and how r we getting it?? Is IEEE also have some range?? $\endgroup$ – Srestha May 21 '19 at 1:56
  • $\begingroup$ IEEE defines the range. Check the standard specification (wiki is a good place to start) $\endgroup$ – Ran G. May 23 '19 at 18:30

Not the answer you're looking for? Browse other questions tagged or ask your own question.