# Re: numberformat question

```Paul, Sean,

```
Thank you both for your answers, although it doesn't really solve my problem. The most surprising thing is that javascript runs these calculations without
```problem :
```
(-0.0000007347880794884118999 / 1000000000) returns -7.347880794884119e-16 (-0.0000007347880794884118999 / 1000000000000) returns -7.347880794884119e-19
```
Best

Le 2021-03-21 07:11, Sean Cole (Pi) via use-livecode a écrit :
```
```Livecode can handle floating point numbers up to 2^52. But then
calculations would have to fit within that range in a floating point
perspective too. So, once you add that ninth zero to the end of your
```
divider, it struggles with the calculation and returns, effectively, number
```out of range.

```
Fractions in FP binary are tremendously complicated. Calculation in it are
```even more so.

https://www.h-schmidt.net/FloatConverter/IEEE754.html

On Sat, 20 Mar 2021 at 20:23, Paul Dupuis via use-livecode <
use-livecode@lists.runrev.com> wrote:

```
```I don't have an answer, other than to say there has been a LOT of
discussion over the years about the limits of number precision in
LiveCode and a number of enhancement requests and 3rd party libraries
```
that have attempted to provide a framework for high precision math. You
```might search the list archives or search the forum on the LC web site
for past discussions about number precision.

On 3/20/2021 3:06 PM, jbv via use-livecode wrote:
> Hi list,
> I am a bit lost :
>
>    set numberformat to ".#########################"
>    put -0.0000007347880794884118999 / 1000
> -- returns -0.0000000007347880794884119  which is ok
>
>    put -0.0000007347880794884118999 / 1000000
> -- returns -0.0000000000007347880794884 -> also ok
>
>    put -0.0000007347880794884118999 / 100000000
> -- returns -0.0000000000000073478807949 -> still ok
>
>    put -0.0000007347880794884118999 / 1000000000
> -- returns 0 -> ?????
>
> Any explanations ?
> Best,
> jbv
>
> _______________________________________________
> use-livecode mailing list
> use-livecode@lists.runrev.com
> Please visit this url to subscribe, unsubscribe and manage your
> subscription preferences:
> http://lists.runrev.com/mailman/listinfo/use-livecode

_______________________________________________
use-livecode mailing list
use-livecode@lists.runrev.com
Please visit this url to subscribe, unsubscribe and manage your
subscription preferences:
http://lists.runrev.com/mailman/listinfo/use-livecode

```
```
_______________________________________________
use-livecode mailing list
use-livecode@lists.runrev.com