Significant digits in a float?
Grant Edwards
invalid at invalid.invalid
Wed Apr 30 14:18:15 EDT 2014
On 2014-04-29, Roy Smith <roy at panix.com> wrote:
>> What reason do you have to think that something recorded to 14
>> decimal places was only intended to have been recorded to 4?
>
> Because I understand the physical measurement these numbers represent.
> Sometimes, Steve, you have to assume that when somebody asks a question,
> they actually have asked the question then intended to ask.
Sometimes. But the smart money bets against it -- especially when
people are asking about floating point. :)
It doesn't sound to me like you have enough information to reliably do
what you want to do, but parsing the string representation is probably
the best way to go.
--
Grant Edwards grant.b.edwards Yow! HELLO KITTY gang
at terrorizes town, family
gmail.com STICKERED to death!
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