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
>
>
>
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> Factor-talk@lists.sourceforge.net
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>
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