Thank you.
I have not considered that floating point numbers are displayed rounded.
Am Tue, 18 Dec 2018 16:40:21 -0800
schrieb John Benediktsson <mrj...@gmail.com>:
> Your number isn't quite 13799, represented as a floating point
> number, but maybe we could print it out with additional digits. See,
> for example, the same result in other languages:
>
> Here is Java:
>
> $ cat foo.java
> class foo {
>
> public static void main(String[] args) {
> double[] foo = { -13.8, -21.8, -3.99, -3.0, -15.7, 126.98, -8.9,
> 100.0, -21.8 };
>
> double x = 0.0;
> for (int i = 0; i < foo.length; i++) {
> x += foo[i];
> }
> System.out.println(x);
> System.out.println(x*100);
> System.out.println((int)(x*100));
> }
> }
> $ javac foo.java
> $ java foo
> 137.98999999999998
> 13798.999999999998
> 13798
>
>
> Or Python:
>
> >>> a = [-13.8, -21.8, -3.99, -3.0, -15.7, 126.98, -8.9, 100.0, -21.8]
> >>> sum(a)
> 137.98999999999998
> >>> sum(a) * 100
> 13798.999999999998
> >>> int(sum(a) * 100)
> 13798
>
>
>
>
> On Tue, Dec 18, 2018 at 12:26 PM Alexander Ilin <ajs...@yandex.ru>
> wrote:
>
> > USE: math.functions:round instead
> >
> > 18.12.2018, 15:14, "Georg Simon" <georg.si...@auge.de>:
> > > Below I pasted a result from my listener I do not understand.
> > >
> > > The result of sum looks like 137.99 which is right.
> > > But the integer I made out of it is 13798 which is wrong.
> > >
> > > A typed in 137.99 gives the result I expect.
> > >
> > > What am I missing ?
> > > ------------------------------------------------------------------
> > > Press F1 at any time for help.
> > > Factor 0.99 x86.64 (1889, heads/master-f77d46f0c8, Dec 1 2018
> > > 21:02:41) [GCC 7.3.0] on linux
> > >
> > > IN: scratchpad { -13.8 -21.8 -3.99 -3.0 -15.7 126.98 -8.9 100.0
> > > -21.8 } sum
> > >
> > > --- Data stack:
> > > 137.99
> > > IN: scratchpad 100 *
> > >
> > > --- Data stack:
> > > 13799.0
> > > IN: scratchpad >integer .
> > > 13798
> > > IN: scratchpad 137.99 100 * >integer .
> > > 13799
> >
> > ---=====---
> > Александр
> >
> >
> >
> > _______________________________________________
> > Factor-talk mailing list
> > Factor-talk@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/factor-talk
> >
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