Re: Lua evolution and C99
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- Subject: Re: Lua evolution and C99
- From: Wesley Smith <wesley.hoke@...>
- Date: Mon, 8 Aug 2011 18:33:06 -0700
> Actually, making lua_Numbers complex is a bad idea. Complex numbers do
> not have a natural ordering relationship like real numbers do.
> With integers or real numbers you can assert that for any x,y
>
> assert((not (x<y) and not (y<x)) == (x==y))
>
> For complex numbers such an ordering operator does not exist.
It can always be defined. For example, in the complex representation
mag*e^theta, you could use relational operators to indicate relative
magnitudes. Of course, there's no uniqueness, but it's still useful.
I think the real argument for not make lua_Number complex is memory
usage.
wes