The exponent is always there even if it’s not displayed, and floating point
fails even with 0.1. It’s not possible to exactly represent that in floating
point. That’s OK for math where you’re dealing with “significant digits”. As
long as the floating point representation has few more digits than
correction: floating point fails with irrational numbers too.
David C
On Wed, Sep 19, 2018 at 10:13 AM David Carlson
wrote:
> I did not know "decimal format" was synonymous with floating point. I need
> to see the exponent to think floating point. I think of decimal as simply a
> way to print o
I did not know "decimal format" was synonymous with floating point. I need
to see the exponent to think floating point. I think of decimal as simply a
way to print out numbers on paper or computer screens, not a computation
method. I definitely agree that floating point computations always have
ac
David,
David,
Yes: "GnuCash was changed in release 2.6.8, dated late 2015 to usually store
prices in decimal format when they were entered in decimal format”
In computation, “decimal” and “floating point” are generally equivalent. The
rare exception is binary-coded-decimal or BCD, but few langu
John,
Did you find a reference to floating point in my last message? If so it
was obsolete or inadvertent, as I know enough of the history of GnuCash to
know that GnuCash never has and never will go there and why. There may
have been something in one of the bug reports that I cited, but I also k
If instead of a mailing list it was a social network, I just would like
your reply! Thanks again for your input and references,
--
Christian Pinedo Zamalloa (zako)
Sent from my mobile device, please excuse brevity or typos
El mié., 19 sept. 2018 1:22, David Carlson
escribió:
> There have been s
No, GnuCash has never, ever, stored any number in floating point. Stored
numbers in GnuCash have been rationals from the very beginning. It was changed
in 2.6.8 to always round prices for display so that they’d always appear in
decimal form to the user, but the code that did it was overwhelmed b
There have been several discussions over the years around various aspects
of the topics of numeric accuracy, displaying accurate values vs easily
readable values, whether GnuCash records do or do not match brokers'
reports or newspaper stock price listings, and even whether the GnuCash
price databa
> On Sep 18, 2018, at 2:22 PM, Christian Pinedo Zamalloa
> wrote:
>
> Hi David,
>
> At the end I was able to get properly the price by skipping it and letting
> to GnuCash to calculate it as you suggested. However, I think that this
> might be a kind of bug, because if I insert the price in
Hi David,
At the end I was able to get properly the price by skipping it and letting
to GnuCash to calculate it as you suggested. However, I think that this
might be a kind of bug, because if I insert the price in decimal format, it
shouldn't be modified and the total amount should be calculated a
The reason David’s advice is correct is that decimal numbers on computers are
represented as binaries and are fundamentally inaccurate: it is not possible to
exactly represent 0.1 in binary, just as it’s impossible to exactly represent
1/3 as a decimal fraction.You avoid the representation probl
As I stated in my reply, enter the number of shares and total amount, Skip
the price, let GnuCash take care of that.
David C
On Sat, Sep 15, 2018 at 9:21 AM Christian Pinedo Zamalloa <
chr.pin...@gmail.com> wrote:
> Hi David,
>
> I also agree with you that the fractional format is more difficul
Hi David,
I also agree with you that the fractional format is more difficult to read
than decimal and I also hope to return to decimal format or at least to be
able to choose between decimal or fractional format.
Regarding my problem with price, I insert the number of shares, the prices
(in decim
Christian Pinedo Zamalloa
You have discovered that it is impossible to have all three values shares,
price and total exactly as reported by your broker because he usually has
to round off one of the numbers. The solution is to let GnuCash set the
price after you enter the number of shares and th
Hello,
I have problems to set the correct price of a share that I am selling.
I try to put the value "128,181208053691" which is automatically converted
by GnuCash when i push enter key to "128 + 64/377" whose real value is
"128,169761". Furthermore, I checked if I insert value "1", it is
automat
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