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Date: Sat, 15 Mar 2025 12:40:04 +0100
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Subject: Re: [PHP-DEV] BCMath: Supporting scientific notation
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To: Saki Takamachi <saki@sakiot.com>, php internals <internals@lists.php.net>
References: <38BC54BF-2839-47B3-9C31-417834BEEB49@sakiot.com>
In-Reply-To: <38BC54BF-2839-47B3-9C31-417834BEEB49@sakiot.com>
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From: cmbecker69@gmx.de ("Christoph M. Becker")

On 15.03.2025 at 01:14, Saki Takamachi wrote:

> In the following issue, there was a proposal to add support for scientif=
ic notation in BCMath.
> https://github.com/php/php-src/issues/17876
>
> I agree with this and have already created a prototype.
> https://github.com/php/php-src/pull/18068
>
> The prototype allows to pass scientific notation values =E2=80=8B=E2=80=
=8Bto both functions and classes in the same way as normal numeric string.
>
> The Number class could add a method to convert strings to scientific not=
ation, or it could simply not accept scientific notation in the constructo=
r and create a dedicated static method for it.
> We can also choose not to accept scientific notation in BCMath functions=
.
>
> Could you please give your opinion on this?

The only problem I see with this is that users might now cast (almost)
arbitrary float values to string, and pass these to BCMath.  However,
they can already do that for many float values, so probably not a big
problem.

Christoph