Anonymous user
Talk:Convert decimal number to rational: Difference between revisions
Talk:Convert decimal number to rational (view source)
Revision as of 21:26, 13 August 2012
, 11 years ago→inaccuracies: fixed a line-break (unwaned paragraph). -- ~~~~
(→inaccuracies: floating-point storage/representation of numbers, decimal vs. binary, guard digits. -- ~~~~) |
(→inaccuracies: fixed a line-break (unwaned paragraph). -- ~~~~) |
||
Line 56:
::: Sorry, yes -- I assumed IEEE-754 floating point, as opposed to some other variation. And, yes, the term "floating point" is general enough to cover all sorts of implementations. Still, that doesn't change the fundamental issue here -- which is that floating point is an approximation unless explicitly declared otherwise. If anything, it reinforces that conclusion (since it requires that the details of the floating point implementation be fixed before we can have a case where floating point is not an approximation). --[[User:Rdm|Rdm]] 21:08, 13 August 2012 (UTC)
:::: When talking about floating point numbers to a REXXer (er, I think that's what I am ...), floating point is exact. 10.77 is precise (no approximations) and that's the way REXX stores it: the way you see it here. What you see is what you get. I realized that for most programmers, this isn't the case when it comes to the storage or expressing of floating-point numbers. I'd hate to have REXX excluded from this party because it uses an exact (base ten) floating point number repesentation with an (more-or-less) unbounded/unlimited mantissa (base ten), no guard digit(s), no binary representation of numbers. REXX knows nothing of IEEE-anything floating point. -- [[User:Gerard Schildberger|Gerard Schildberger]] 21:25, 13 August 2012 (UTC)
| |||