Re: float_to_list(X)

Hi, again.

Following a response I got from Dmitry Klionsky, perhaps it makes sense for
*float_to_list(N)* to be made into a wrapper for
*lists:flatten(io_lib:format("~p",[N]))?*

Eshell V11.1  (abort with ^G)
1> N = 4.4445.
4.4445
2> lists:flatten(io_lib:format("~p",[N])).
"4.4445"
3> P = 5.4443.
5.4443
4> lists:flatten(io_lib:format("~p",[P])).
"5.4443"
5> Q = 1.2345678.
1.2345678
6> lists:flatten(io_lib:format("~p",[Q])).
"1.2345678"
7> float_to_list(Q).
"1.23456779999999999298e+00"
8>

Regards

*Themba Jonga*



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On Wed, 5 May 2021 at 18:38, Scott Ribe <[email protected]> wrote:

> > On May 5, 2021, at 10:20 AM, [email protected] wrote:
> >
> > In short, no.
>
> Although many (most, actually nearly all) real numbers cannot be
> represented precisely as a float, any float can be round-tripped to text
> and back exactly. This is part of the IEEE floating point standard,
> actually. (And it's not easy...)
>
>
>
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