Re: mathlib

[Jorge <xxopxe@...>]

On 04/07/2014 12:51 PM, Luiz Henrique de Figueiredo wrote:
> There are subtle numerical reasons to avoid these definitions. These
> are handled in libc, as they should. See for instance the Cephes
> Mathematical Library at http://www.netlib.org/cephes/ .

Ok, I see it. Adding very big and very small numbers means trouble in float.

> This is the main reason why providing a math library in Lua is probably
> not a good idea: the result would either have low quality or be quite
> complex and obscure, in the interest of precision.

I imagine doing it in pure Lua would be extremely hard not knowing 
exactly what number representation the VM is built with. That probably 
means that a full math library will always be inherently less portable 
than a Lua script.

Jorge