From: Mike Campbell <michael_s_campbell@...>
Date: 2002-04-01T22:49:48+09:00
Subject: RE: Why isn't Math object-oriented?

> I'm OK with sin(x) working. I'm not OK with not being able to say
> >
> >   r*theta.sin + r*theta.cos
> >
> > because that's how every other similar operation would be expressed
> in Ruby.
> >
> > I needed to do one of these things recently. When I said 4.sqrt and
> it didn't
> > work, I was /very/ surprised.
> >
> > The two ways are not incompatible, as far as I can see.
>
> It's easy.
>
>   (Math.methods - Module.methods).each do |m|
>     Numeric.class_eval "def #{m}(*a) Math.#{m}(self, *a) end"
>   end



I'm new here, but I think the original question was not "how do I do it", but
"why is it like this", which Matz answered.

Still, I tend to agree with Ron; it seems unclean having a procedural set of
Math operations when most things aren't.


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